Speak and Write Language Series
Unit I — 精密さと文体 · Chapter 3 of 20
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語彙とコロケーションVocabulary and Collocation Mastery

Idioms, collocations, lexical strata, and nuance across Sino-Japanese compounds, native verbs, loanwords, mimetics, and proverbs · Speak and Write Japanese: Mastery, Specialization, and Expert Communication

Chapter Objectives

By the end of this chapter, you will be able to:

  1. Choose between a Sino-Japanese compound and a native Japanese word for the same general meaning, based on register, density, and genre.
  2. Identify and use high-frequency professional and academic collocations rather than assembling phrases word by word.
  3. Recognize and interpret common idioms and proverbs in context without treating them as literal statements.
  4. Use mimetic vocabulary appropriately in speech and writing that call for vivid, precise description.
  5. Distinguish near-synonyms by register, collocation restriction, and connotation rather than by dictionary definition alone.
  6. Identify loanwords whose Japanese meaning has shifted from their source language and use them with their actual Japanese meaning.
  7. Read a dense passage and correctly interpret figurative and idiomatic expressions in context.
  8. Revise a piece of writing by replacing a generic or awkward word choice with a precise, well-collocated alternative.

Communication Scenario

With her paragraph on regional dialect now structurally precise, エマ brings a new draft to 山本さん — this time the grammar is sound, but 山本さん circles four different words and writes a single comment beside them: 「意味は合っていますが、この文脈には合いません」("The meaning is correct, but it doesn't fit this context"). Emma realizes that being grammatically correct and being lexically exact are two different skills. Over the course of this chapter, she works through her vocabulary choices one collocation at a time, learning why a native verb sometimes outperforms a more sophisticated-sounding Sino-Japanese compound, and why a well-placed idiom or mimetic word can do work that ten extra words of explanation cannot.

  1. The learner listens to 山本さん explaining the difference between correct meaning and correct word choice.
  2. The learner reads Emma's second draft alongside 山本さん's collocation notes.
  3. The learner studies five lexical systems: register-based word choice, professional collocations, idioms and proverbs, mimetic vocabulary, and loanword meaning shift.
  4. The learner practices selecting the word a context actually calls for, rather than any word that is merely correct.
  5. The learner revises a paragraph of their own writing by replacing at least four generic word choices with precise, well-collocated alternatives.
  6. The learner explains, in Japanese, why one word choice fits a given context better than a plausible near-synonym.
ごい — Core Vocabulary

Core Vocabulary

This chapter's vocabulary names the lexical systems themselves, giving you language to discuss word choice with the same precision you now bring to grammar. All twelve items below are productive for this chapter and use kanji already consolidated in earlier volumes.

JapaneseReadingMeaningDomain
類義語るいぎごnear-synonym, similar-meaning wordLexical analysis
語感ごかんthe feel or nuance of a wordLexical analysis
言い回しいいまわしa turn of phrase, an expressionIdiom/collocation
慣用句かんようくidiom, fixed expressionIdiom/collocation
ことわざことわざproverbIdiom/collocation
組み合わせくみあわせcombination, pairing (of words)Collocation
硬い表現かたいひょうげんa stiff or formal expressionRegister
和語わごnative Japanese word (as opposed to Sino-Japanese)Lexical strata
漢語かんごSino-Japanese word or compoundLexical strata
擬態語ぎたいごmimetic word describing a state or mannerMimetics
意味がずれるいみがずれるfor the meaning to shift or drift (from expected)Loanwords
文脈に合うぶんみゃくにあうto fit the contextPrecision

These items are metalinguistic, describing vocabulary itself rather than a new topic domain, and should combine naturally with the precision vocabulary from Chapter 2.

れんしゅう — Practice: For each of the twelve items above, write one sentence about a word-choice decision from your own writing (for example, この語は語感が少し硬すぎると思う。).

もじ — Script and Terminology Focus

Script and Terminology Focus

This chapter introduces no new kanji. Its script focus is on the stylistic choice between kanji and kana for the same word, and on the rare readings that appear in advanced idioms and mimetic expressions borrowed from classical usage.

Script Strategy — Kanji/kana choice as a stylistic decision

Many native Japanese words, such as こと, もの, とき, and certain mimetic words, may be written in either kanji or hiragana depending on genre, formality, and personal or house style, even when a kanji form exists. In dense academic or professional prose, writers often keep grammatical and light lexical words in hiragana while reserving kanji for content words, which keeps the text visually readable despite its density. When you encounter a published text that writes a familiar word unexpectedly in kana, this is very often a deliberate stylistic choice rather than an error, and you should not "correct" it when quoting or citing such a text.

れんしゅう — Practice: Choose five words from this chapter's Core Vocabulary or Grammar sections that could plausibly appear in either kanji or kana. For each one, write both forms and note one genre or context where each form would be more natural.

Pronunciation Focus

Pronunciation Focus — Prosody of mimetic and idiomatic expressions

Mimetic words and fixed idiomatic phrases often carry a distinctive rhythm that native speakers reproduce automatically but that learners must practice deliberately. A word such as じわじわ is typically produced with even, unhurried timing that mirrors its gradual meaning, while a word such as ぴしゃりと is produced with a sharper, more clipped rhythm that mirrors its abruptness. As you practice this chapter's mimetic vocabulary aloud, pay attention to whether the sound of the word supports its meaning, while keeping mora count, vowel length, and gemination accurate throughout.

Vocabulary and Collocation Systems

This chapter authorizes five interconnected lexical systems: register-based word choice between native and Sino-Japanese vocabulary, professional and academic collocation frames, idioms and proverbs, mimetic vocabulary, and loanwords whose meaning has shifted in Japanese. None of these systems requires new grammar. What is new is the expectation that you choose the exact word a context calls for, based on register, collocation, and connotation, rather than any word that is merely correct.

1. Native versus Sino-Japanese vocabulary: choosing by register and density

Purpose: to select between a native Japanese word (和語) and a Sino-Japanese compound (漢語) for the same general meaning, based on which register and level of density the context requires.

和語 (native)漢語 (Sino-Japanese)Typical Contrast
調べる調査するeveryday/spoken versus formal/written or institutional
考える検討するgeneral thinking versus formal deliberation
分かる理解するeveryday comprehension versus intellectual or academic understanding
助ける支援するdirect, personal help versus institutional or programmatic support
  • 友人が引っ越しを手伝ってくれた。A friend helped me with the move.和語 (手伝う) — personal, everyday register
  • 自治体は被災地域への支援を継続している。The municipality continues to provide support to the disaster-affected region.漢語 (支援する) — institutional, formal register
Language Focus — Sino-Japanese density in professional prose

Dense professional and academic Japanese leans more heavily on Sino-Japanese compounds than everyday speech does, partly because these compounds pack more meaning into fewer syllables and partly because of long-standing genre convention. However, overusing 漢語 in a spoken or personal context can sound stiff, distant, or even pompous. The reverse — using only 和語 in a formal report — can sound underqualified for the genre. This chapter asks you to make this choice deliberately rather than by habit.

2. Professional and academic collocations

Purpose: to reproduce the fixed word combinations that professional and academic Japanese actually uses, rather than assembling a phrase word by word from a dictionary.

  • 課題に取り組むto tackle/engage with a challengefixed collocation — 課題 pairs with 取り組む, not with a generic verb like する
  • 責任を負うto bear responsibilityfixed collocation — 責任 pairs with 負う, not with 持つ in this formal sense
  • 見解を示すto present a view/positionfixed collocation — common in academic and institutional writing
  • 影響を及ぼすto exert an influencefixed collocation — 影響 pairs with 及ぼす in formal register, contrasted with everyday 影響がある

3. Idioms and proverbs in context

Purpose: to interpret common idioms and proverbs figuratively rather than literally, and to use a small set of high-frequency idioms appropriately in writing and speech.

  • 腰を据えて取り組むto settle in and commit to a task (lit. "to plant one's hips and work on it")idiom — signals sustained, serious commitment, not a literal posture
  • 石の上にも三年perseverance eventually pays off (lit. "three years on a stone")proverb — used to encourage patience with a long-term effort
  • 目に見える形で示すto demonstrate in a visible/tangible wayfixed phrase — common in reports and proposals, not a literal claim about vision

4. Mimetic vocabulary in precise, vivid description

Purpose: to use mimetic words (擬態語, and related 擬音語/擬声語) to convey manner, state, or intensity with a precision that a plain verb or adjective alone cannot achieve.

  • 方言の使用は、じわじわと減少している。The use of the dialect is declining gradually, bit by bit.じわじわ — gradual, almost imperceptible change over time
  • 会議室は、しんと静まり返っていた。The meeting room had fallen into a complete, heavy silence.しんと — a deep, tense stillness, stronger than plain 静かに
  • 彼はその指摘に、ぎくりとした表情を見せた。He showed a startled, caught-off-guard expression at that remark.ぎくりと — a sudden, involuntary jolt of surprise or guilt

5. Loanwords with shifted Japanese meaning

Purpose: to use loanwords according to their actual, established Japanese meaning rather than assuming the source-language meaning applies unchanged.

  • マンションa mid-to-high-rise concrete apartment building (not an English "mansion")meaning narrowed and shifted from the English source word
  • クレームa complaint (not an English "claim" in the neutral sense)meaning narrowed to a specific negative sense in Japanese usage
  • コンセントan electrical wall outlet (not English "consent")borrowed form reassigned to an unrelated meaning in Japanese

Vocabulary and Collocation Practice

  1. Write two sentences about the same situation, one using a 和語 verb and one using its 漢語 equivalent, and explain in English how the register differs.
  2. Write a sentence using one of this chapter's professional collocations, making sure the noun and verb are paired correctly.
  3. Choose one idiom or proverb from this chapter and write a short context in which it would be used naturally and appropriately.
  4. Rewrite a plain sentence about a gradual or sudden change, replacing a generic adverb with an appropriate mimetic word.

Model Dialogue

Setting: 山本さん reviews Emma's second draft with her at the magazine office. Polite style, mentor-colleague relationship.

山本文法はもう問題ありませんね。ただ、ここで「理解する」と書いていますが、この場面ではちょっと硬すぎる気がします。The grammar is no longer a problem. But here you've written "rikai suru" — in this scene, that feels a bit too stiff.
エマ「分かる」のほうがいいということですか。Do you mean "wakaru" would be better?
山本ええ、この文脈は住民同士の日常会話の場面なので、和語のほうが自然に聞こえます。それから、この「影響がある」という部分ですが、専門的な文章なら「影響を及ぼす」という組み合わせのほうがよく使われます。Yes — since the context here is everyday conversation between residents, the native word sounds more natural. Also, about this "eikyou ga aru" part — in a specialized piece of writing, the combination "eikyou o oyobosu" is more commonly used.
エマなるほど、単語自体は間違っていなくても、組み合わせが違うんですね。I see — so even though the word itself isn't wrong, the combination is different.
山本そうです。それに、方言が少しずつ失われていく様子を表すなら、「じわじわと」という擬態語を使うと、読者によりはっきりと伝わりますよ。That's right. Also, if you're describing how the dialect is being lost little by little, using the mimetic word "jiwajiwa to" will convey it more clearly to the reader.
エマ「じわじわと減少している」ですね。書き直してみます。"Declining gradually, bit by bit" — right. I'll try rewriting it.
山本いいと思います。語感が合っていると、文章全体の説得力が違ってきますからね。I think that's good. When the feel of the words is right, it changes the persuasiveness of the whole piece.

Emma underlines three more words in her draft, already anticipating which ones 山本さん will question next.

ないようりかい — Comprehension check: Why does 山本さん suggest changing 理解する to 分かる in this context? What collocation problem does he identify with 影響がある, and what does he suggest instead? Why does he recommend a mimetic word for the sentence about the dialect's decline?

Guided Practice

タスク1 — System identification. Reread the Model Dialogue and identify which of this chapter's five lexical systems each of 山本さん's suggestions draws on.

タスク2 — Word-choice revision. Take three sentences from your own recent writing (in Japanese, from any earlier chapter's work) and revise the word choice in each one using a system from this chapter.

タスク3 — Justification. With a partner, explain in Japanese why you chose one word, collocation, or mimetic expression over a plausible near-synonym in Task 2.

Listening Practice

Ask your instructor, a partner, or a text-to-speech tool to read the following short passage aloud.

きくタスク — 山本さん explains word choice to a group of writers

言葉の意味が正しくても、文脈に合わないことがあります。硬い漢語は専門的な文章にはふさわしくても、日常会話の場面では不自然に響くことがあります。逆に、和語だけで書かれた報告書は、内容が軽く見えてしまうこともあるでしょう。大切なのは、辞書的な意味だけでなく、その語がどんな場面で、どんな相手に対して使われるかを考えることです。

聞くタスク — Listening task: Listen at least twice. (1) What can happen even when a word's meaning is correct? (2) What kind of writing suits 漢語, and what problem can it cause elsewhere? (3) What can happen to a report written using only 和語? (4) What does 山本さん say is the important thing to consider beyond dictionary meaning?

Speaking Practice

コントロールされた練習 — Controlled practice: Register-switch drill

  1. _____が分かった。 → _____を理解した。 (switch from everyday to formal register)
  2. _____を手伝った。 → _____を支援した。 (switch from personal to institutional register)
  3. _____に影響がある。 → _____に影響を及ぼす。 (switch to the correct professional collocation)
  4. _____が少しずつ減った。 → _____がじわじわと減少した。 (add a mimetic word for precision)

コミュニケーションタスク — Justifying a word choice aloud

Choose one sentence from your Task 2 revisions above. Record yourself explaining, in Japanese, what was imprecise about the original word choice and why your revised word or collocation fits the context better.

ひとりでもできる練習 — Solo practice: Mimetic word reading

Read the three mimetic-word examples from the Grammar section aloud, adjusting your pacing and intensity to match each word's meaning (gradual, hushed, sudden). Record yourself and listen back once for rhythm.

Reading Practice

Read Emma's revised paragraph below, alongside a note on what changed, and complete the questions that follow.

改訂後の段落(抜粋)

その地域の方言は、住民同士の会話の中でも、じわじわと使われなくなりつつある。若い世代の多くは、方言が分からないわけではないが、日常的に使う機会がほとんどないという。ある高齢の話者は、方言について尋ねられると、ぎくりとした表情を見せた後、少し寂しそうにこう語った。「昔は当たり前だったのに、今では珍しがられる。腰を据えて残そうとする人がいなければ、この言葉はいずれ消えてしまうかもしれない。」こうした変化は、地域社会全体に少なからぬ影響を及ぼしている。

  1. Identify the mimetic word describing the dialect's decline and explain what kind of change it suggests.
  2. Identify the mimetic word describing the elderly speaker's expression and explain what it suggests about his reaction.
  3. Identify the idiom used by the elderly speaker and explain what commitment it suggests.
  4. Find the professional collocation involving 影響 and explain why it fits this context better than a plainer alternative like 影響がある.

Writing Workshop

Revise a paragraph of your own writing for precise word choice, following Emma's example.

  1. Select a paragraph. Choose three to five sentences from your own earlier Japanese writing, ideally the same paragraph you revised for grammar in Chapter 2.
  2. Diagnose each word choice. For each sentence, ask whether a word is too stiff, too casual, wrongly collocated, or simply generic where something more precise is available.
  3. Revise at least one word choice between 和語 and 漢語 based on the register the context actually requires.
  4. Revise at least one phrase into a correct professional or academic collocation rather than a word-by-word construction.
  5. Add at least one mimetic word where it would convey manner, state, or intensity more precisely than a plain adverb.
  6. Check for one idiom or proverb that could be added naturally, without forcing it into an unsuitable context.
  7. Write a two-to-three-sentence note explaining, in Japanese, what changed and why.

チェックリスト — Revision checklist:

  • Each revised word or phrase was chosen for its exact register and connotation, not simply an acceptable synonym.
  • My professional collocations reflect natural, attested pairings, not word-by-word assembly.
  • My mimetic word choices reflect the actual manner or intensity of the situation described.
  • Any idiom or proverb I used fits its context naturally, without sounding forced.
  • My explanatory note names the specific lexical system used in each revision.

Culture and Communication

Culture in Context — Vocabulary choice as a marker of care

In many Japanese professional and editorial contexts, a writer's vocabulary choices are read as a signal of how carefully they have thought about their audience, not merely as a display of sophistication. A report that reaches for the most formal Sino-Japanese term available in every sentence can come across as detached from the reader, while a piece that mixes registers unpredictably can come across as careless. Editors such as 山本さん in this chapter's scenario are often as concerned with a writer's word-level choices as with their grammar.

Regional Note — Mimetic vocabulary and dialect

Some mimetic words vary by region, and speakers of certain dialects use mimetic vocabulary not found in standard Japanese to describe local weather, food textures, or social behavior with great precision. This connects directly to Emma's article topic, and the volume will return to regional lexical variation in more depth in Chapter 13.

Common Mistakes to Avoid

Common Mistake — Assuming a loanword means what its source word means

Error: Using a katakana loanword according to its English (or other source-language) meaning rather than its established Japanese meaning, as with treating クレーム as a neutral "claim" rather than a complaint.

Correction: Check the Japanese meaning of any loanword before using it in writing, and treat it as Japanese vocabulary with its own established sense: 客からクレームが来た。 (A complaint came in from a customer.)

Common Mistake — Assembling a collocation word by word

Error: Pairing a noun with whatever verb seems logically compatible, such as 影響がある where a formal register calls for 影響を及ぼす, or 責任を持つ where a formal register calls for 責任を負う.

Correction: Learn high-frequency professional collocations as fixed units, and verify unfamiliar pairings in a monolingual dictionary or corpus rather than assembling them from separate translations.

Common Mistake — Overusing idioms or proverbs to sound advanced

Error: Inserting an idiom or proverb into a context it does not naturally fit, simply to demonstrate advanced vocabulary.

Correction: Use an idiom or proverb only where its figurative meaning genuinely matches the situation, as in 腰を据えて取り組む for a task requiring real sustained commitment, not for any task in general.

Chapter Review

Section A — ごい (Vocabulary)

1. Complete the Core Vocabulary practice above.

Section B — もじ (Script)

1. Complete the Script and Terminology Focus practice above.

Section C — ごいとコロケーション (Vocabulary and Collocation)

1. Complete the Vocabulary and Collocation Practice exercises above.

Section D — どっかいりかい (Reading comprehension)

1. Complete the Reading Practice questions above.

Section E — かくこと (Writing)

1. Complete all seven steps of the Writing Workshop, as part of the Performance Task below.

Section F — はなすこと (Speaking)

1. Complete the spoken justification recording from Speaking Practice, as part of the Performance Task below.

Performance Task

パフォーマンスタスク

語彙の練習:段落の改訂 — Revising a Paragraph for Lexical Precision

Complete all four parts below to demonstrate vocabulary and collocation mastery across this chapter's five systems.

  • Listening: Complete the Listening Practice task above and summarize 山本さん's principle about word choice in your own words.
  • Reading: Answer the Reading Practice questions about Emma's revised paragraph.
  • Spoken production: Deliver your recorded justification from Speaking Practice, explaining a word-choice revision using at least two of this chapter's lexical systems.
  • Written production: Submit your complete revised paragraph and explanatory note from the Writing Workshop, checked against the checklist above.

Assessment focus: precision and appropriateness of register-based word choice; accuracy of professional collocations; natural, well-fitted use of idioms or proverbs; precise use of mimetic vocabulary; correct interpretation of shifted loanword meaning; and accurate particles, grammar, and mixed-script control throughout spoken and written work.

Answer Key

Core Vocabulary

Open-ended; check that each sentence uses the target word accurately and describes an actual word-choice decision.

Script and Terminology Focus

Open-ended; check that five words are given plausible kanji and kana forms with a reasonable genre or context noted for each.

Vocabulary and Collocation Practice

Open-ended; model answers: (1) 彼が手伝ってくれた。 versus 彼が支援してくれた。 — the first is personal and everyday, the second institutional or formal. (2) この課題に取り組む必要がある。 (3) 石の上にも三年というので、もう少し続けてみようと思う。 — used to encourage patience with a long-term effort. (4) 売り上げがじわじわと伸びている。

Model Dialogue — Comprehension Check

山本さん suggests 分かる over 理解する because the context is everyday conversation among residents, where the native word sounds more natural. He identifies that 影響がある is not the collocation professional writing calls for, and suggests 影響を及ぼす. He recommends the mimetic word じわじわと because it conveys the gradual, ongoing nature of the dialect's decline more clearly than a plain verb alone.

Guided Practice

Open-ended; evaluate against the five lexical systems named in the Vocabulary and Collocation Systems section: register-based word choice, professional collocations, idioms/proverbs, mimetic vocabulary, and loanword meaning shift.

Listening Practice — Model answers

(1) A word can be contextually wrong even when its meaning is correct. (2) Stiff Sino-Japanese vocabulary suits specialized writing but can sound unnatural in everyday conversation. (3) A report written using only native vocabulary can come across as lacking substance. (4) 山本さん says it is important to consider the setting and audience a word is used with, not only its dictionary meaning.

Reading Practice

(1) じわじわと suggests a slow, almost imperceptible ongoing decline. (2) ぎくりとした suggests a sudden, involuntary startled reaction, perhaps touching on a sensitive topic. (3) 腰を据えて suggests a serious, sustained commitment to preserving the dialect. (4) 影響を及ぼしている fits the formal, analytical register of the surrounding sentence better than the plainer 影響がある.

Chapter Review — Sections A through D

Open-ended; check against the Core Vocabulary, Script and Terminology Focus, Vocabulary and Collocation Practice, and Reading Practice sections above.

Chapter Review — Sections E and F, and Performance Task

These are open-ended, integrated production tasks. Evaluate the revised paragraph and the recorded spoken justification against the assessment focus listed under the Performance Task above.

Looking Ahead

いまできること — What you can do now

You can choose between native and Sino-Japanese vocabulary based on register, reproduce common professional and academic collocations accurately, interpret and use idioms and proverbs appropriately, use mimetic vocabulary for precise description, and recognize when a loanword's Japanese meaning has shifted from its source. This lexical precision will carry directly into your ongoing article draft and into the stylistic work of the next chapter.

第4章へContinuing to Chapter 4

Chapter 4, 文体を選ぶ (Choosing Style), builds on this chapter's precision work by turning to genre, voice, persona, and audience — so that Emma's, and your own, writing can shift deliberately across academic prose, correspondence, public explanation, essays, narrative, speech, commentary, and translation style.