2.1 N2 Kanji & On/Kun Readings

How the 漢字読み (Kanji Reading) Question Works

The first task in the Language Knowledge block is 問題1 (Mondai 1・漢字読み, kanji-yomi) — literally kanji reading. Each item shows a full sentence with one word written in kanji and underlined; you choose the correct hiragana reading from four options. N2 usually carries about five of these items.

The three wrong choices are engineered around predictable slips: a wrong on'yomi, a stray kun'yomi, a long vowel where the word is short (or the reverse), a missing or added small っ (sokuon), or the wrong voicing (dakuten). Because the options differ by a single kana, you must know the exact reading, not merely the meaning.

On'yomi vs Kun'yomi

Almost every Jōyō kanji carries at least one of two reading types. The on'yomi (音読み) is the Sino-Japanese reading borrowed from Chinese; it dominates in two-kanji compounds (熟語, jukugo). The kun'yomi (訓読み) is the native Japanese reading, used when a kanji stands alone or heads a verb or adjective that carries okurigana.

A classic N2 example: 握 is read あく (on) inside 把握 (はあく, haaku, to grasp), but にぎ-る (kun) in the standalone verb 握る (にぎる, nigiru, to grip). The trap option はにぎ blends the two readings and is therefore always wrong. Rule of thumb: a two-kanji Sino compound → try on'yomi; a single kanji plus okurigana → kun'yomi.

Scope note: cumulatively N2 draws on roughly 1,000 kanji, corresponding to the Jōyō set learned through the end of Japanese middle school (grades 1-9). You are not tested on stroke-writing; you are tested on turning kanji into sound and meaning.

High-Frequency N2 Kanji (Verified Test Items)

Kanji with Multiple Readings

Many N2 kanji change reading by context, and the exam probes exactly this. Learn the readings as a set:

• 重: 重要 (じゅうよう, jūyō, important) uses じゅう; 慎重 (しんちょう, shinchō, cautious) uses ちょう; 重い (おもい, omoi, heavy) uses the kun.
• 直: 直接 (ちょくせつ, chokusetsu, direct) uses ちょく; 正直 (しょうじき, shōjiki, honest) uses じき; 直す (なおす, naosu, to fix) uses the kun.
• 分: 十分 (じゅうぶん, jūbun, enough) uses ぶん; 五分 (ごふん, gofun, five minutes) uses ふん; 分ける (わける, wakeru, to divide) uses the kun.
• 生: 生活 (せいかつ, seikatsu, life) uses せい; 一生 (いっしょう, isshō, a lifetime) uses しょう; 生きる (いきる, ikiru, to live) uses a kun; 生 (なま, nama, raw) uses another kun.

Rendaku (連濁 — Sequential Voicing)

When two elements join into a compound, the initial consonant of the second element often becomes voiced: k→g, s→z/j, t→d, h→b/p. Examples: 手 (て) + 紙 (かみ) → 手紙 (てがみ, tegami, letter); 人 + 々 → 人々 (ひとびと, hitobito, people); 小 (こ) + 包 (つつみ) → 小包 (こづつみ, kozutsumi, parcel).

Two guardrails keep you from over-applying it. First, rendaku usually does not occur inside on+on Sino compounds (経済 stays けいざい, not けいざい voiced). Second, Lyman's Law blocks rendaku when the second element already contains a voiced obstruent, so 山川 in the sense mountains-and-rivers reads やまかわ, not やまがわ. Reading items sometimes offer both the voiced and unvoiced form; know which the standard word takes.

Worked Examples

1. 「規制を緩和する。」Underlined 緩和. Options ゆるわ / かんか / かんわ / えんわ. 緩 takes on'yomi かん (its kun 緩い is ゆるい, hence the ゆる trap); 和 is わ. Answer: かんわ (kanwa, to ease). ゆるわ mixes kun with on; かんか swaps 和 for a wrong reading; えんわ invents an on for 緩.
2. 「彼は慎重な性格だ。」慎重 → しんちょう. The trap しちょう drops the ん mora; しんじゅう voices ちょう wrongly. Say the word aloud and count morae to defend against these.

Common-mistake callout: Long vs short vowels decide more N2 reading items than any other feature. Compare しょうち (承知, shōchi, understood) vs the illegal しょち, and きょか (許可, kyoka, three morae き-ょ-か) vs きょうか (強化, kyōka, with a long きょう). Pronounce, then count.

Jukujikun and Standalone Kun Words

A handful of high-frequency words use a jukujikun (熟字訓) reading: a native reading assigned to a whole compound rather than syllable by syllable. You cannot build these from on or kun readings — you memorize them as units. Common N2-relevant examples: 大人 (おとな, otona, adult), 今日 (きょう, kyō, today), 昨日 (きのう, kinō, yesterday), 上手 (じょうず, jōzu, skilful), 下手 (へた, heta, unskilful), 眼鏡 (めがね, megane, glasses), and 田舎 (いなか, inaka, countryside). When a reading option looks nothing like the on or kun of the individual kanji, suspect a jukujikun.

Separately, remember that single kanji standing alone almost always take the kun'yomi: 力 (ちから, chikara, strength), 涙 (なみだ, namida, tears), 幸せ (しあわせ, shiawase, happiness), 危険 within 危ない (あぶない, abunai, dangerous). Contrast that with the same characters buried in compounds, where the on'yomi returns: 力 becomes りょく in 努力 (どりょく, doryoku, effort). Ask two questions in order — is the word standalone or compound, and could it be a memorized jukujikun — and the reading choices usually collapse to one.