If N5 is the alphabet and N4 is “hello, how are you,” then N3 is where Japanese finally starts to feel real. At this level the vocabulary stops being about concrete objects — pencils, doors, train stations — and shifts toward abstract concepts like situations, relationships, judgments, and reasons. That shift is exactly what makes N3 both exciting and humbling. You can hold a conversation, but the nuance keeps slipping through your fingers. The good news? Master a core set of N3 vocabulary and those nuances start clicking into place.
This article walks you through 30 essential N3 words grouped by theme, with natural example sentences, common mistakes to avoid, and study strategies that actually work for this level.
At a Glance: 15 High-Frequency N3 Words
| Word | Reading | Meaning |
|---|---|---|
| 場合（ばあい） | baai | case, situation, occasion |
| 様子（ようす） | yousu | appearance, state, manner |
| 以外（いがい） | igai | other than, except for |
| 以上（いじょう） | ijou | more than, above, beyond |
| 以下（いか） | ika | less than, below, the following |
| 直す（なおす） | naosu | to fix, correct, repair |
| 増える（ふえる） | fueru | to increase (intransitive) |
| 減る（へる） | heru | to decrease (intransitive) |
| 関係（かんけい） | kankei | relationship, connection |
| 理由（りゆう） | riyuu | reason, cause |
| 目的（もくてき） | mokuteki | purpose, goal, objective |
| 状況（じょうきょう） | joukyou | situation, circumstances |
| 判断（はんだん） | handan | judgment, decision |
| 表現（ひょうげん） | hyougen | expression, representation |
| 必要（ひつよう） | hitsuyou | necessary, need, requirement |
1. Abstract Nouns: The Core of N3
The biggest leap from N4 to N3 is vocabulary that names concepts rather than things. These six nouns appear constantly in N3 reading passages, listening scripts, and conversation.
場合（ばあい）— case, situation, occasion
場合 refers to a hypothetical or specific case/situation. It is often paired with conditional structures. A useful comparison: とき (N4) describes a time when something happens; 場合 focuses on the situational condition.
Example 1: 緊急の場合（きんきゅうのばあい）は、このボタンを押してください。
In an emergency, please press this button.
Example 2: 遅れる場合（おくれるばあい）は、必ず連絡してください。
If you are going to be late, please make sure to contact us.
様子（ようす）— appearance, state, manner
様子 describes how something or someone looks, feels, or seems from the outside. It is the word for “the state/appearance of things.” You might use it to describe a person’s mood, the condition of a room, or how a situation is developing.
Example 1: 彼女は悲しそうな様子（ようす）だった。
She had a sad-looking appearance / She seemed sad.
Example 2: 街の様子（まちのようす）がずいぶん変わった。
The state of the town has changed quite a bit.
関係（かんけい）— relationship, connection
関係 covers relationships between people as well as connections between events or facts. The phrase 〜に関係なく (regardless of) is a high-frequency N3 pattern worth memorizing separately.
Example 1: 彼とは長い関係（かんけい）がある。
I have had a long relationship with him.
Example 2: その問題は私とは関係（かんけい）がない。
That problem has nothing to do with me.
理由（りゆう）— reason, cause
理由 is the standard word for “reason.” While N4 learners often use から and ので to express reason in a clause, 理由 is the noun form that appears in formal writing and reading passages: 理由を説明する (to explain the reason), 理由がない (there is no reason).
Example 1: 欠席した理由（りゆう）を教えてください。
Please tell me your reason for being absent.
目的（もくてき）— purpose, goal, objective
目的 describes the purpose behind an action. The phrase 〜を目的として (with the aim of doing…) appears frequently in formal N3 texts.
Example 1: この旅行の目的（もくてき）は何ですか？
What is the purpose of this trip?
状況（じょうきょう）— situation, circumstances
状況 is slightly more formal than 場合. While 場合 sets up a conditional case, 状況 describes the overall state of affairs at a given moment — the broader circumstances surrounding an event.
Example 1: 今の状況（じょうきょう）では、旅行は難しい。
In the current situation, traveling is difficult.
Yuka場合と状況って何が違うんだろう？よく混乱しちゃう。
Rei簡単に言うと、場合は「〜の場合は〜する」という条件のときに使うことが多いよ。状況は「今の状況」みたいに、今起きていることの全体的な様子を指すんだ。
2. Degree and Range Words
The words 以外、以上、以下 and 以内 look similar on the page and trip up nearly every N3 candidate. The tricky part: Japanese and English don’t map cleanly in terms of whether the boundary number is included.
| Word | Reading | Meaning | Includes boundary? |
|---|---|---|---|
| 以外（いがい） | igai | other than, except for | N/A |
| 以上（いじょう） | ijou | X or more, above X, at least X | Yes — X is included |
| 以下（いか） | ika | X or less, up to X, at most X | Yes — X is included |
| 以内（いない） | inai | within X, inside X | Yes — X is included |
Critical nuance: 以上 and 以下 both include the boundary number. So 18歳以上（じゅうはっさいいじょう） means “18 years old or older” — 18 is included. This is different from English “more than 18,” which would exclude 18. On the exam, this boundary distinction is tested directly.
Example 1: 18歳以上（じゅうはっさいいじょう）の方のみ入場できます。
Only people aged 18 or older may enter.
Example 2: 10分以内（じゅっぷんいない）に戻ってきてください。
Please come back within 10 minutes.
Example 3: 水以外（みずいがい）は飲まないようにしてください。
Please refrain from drinking anything other than water.
The grammar pattern どんなに〜ても (“no matter how…”) also belongs in this category because it sets an extreme range:
Example 4: どんなに疲れても、毎日日本語を勉強します。
No matter how tired I am, I study Japanese every day.
3. Change and Action Verbs — Transitive and Intransitive Pairs
N3 tests transitive/intransitive verb pairs frequently in both the language knowledge section and reading. The core rule: transitive verbs take a direct object (something does something to an object); intransitive verbs describe a change that happens on its own.
| Intransitive (自動詞) | Meaning | Transitive (他動詞) | Meaning |
|---|---|---|---|
| 増える（ふえる） | to increase (by itself) | 増やす（ふやす） | to increase (something) |
| 減る（へる） | to decrease (by itself) | 減らす（へらす） | to reduce (something) |
| 直る（なおる） | to be fixed / get better | 直す（なおす） | to fix / correct (something) |
| 続く（つづく） | to continue (by itself) | 続ける（つづける） | to continue (something) |
The pattern on the N3 exam typically gives you a sentence with a blank and asks you to choose between the transitive and intransitive form. The subject tells you which to use: if a person is performing the action on something, use the transitive form. If the thing itself is changing, use the intransitive.
Example 1 (intransitive): 観光客（かんこうきゃく）が増えた（ふえた）。
The number of tourists increased. (The tourists increased on their own — no one caused it directly.)
Example 2 (transitive): 市（し）は観光客（かんこうきゃく）を増やした（ふやした）。
The city increased the number of tourists. (The city took action to cause the increase.)
Example 3: 彼女はレポートの間違い（まちがい）を直した（なおした）。
She corrected the mistakes in her report.
Yuka「増える」と「増やす」、どっちを使えばいいか迷うんだよね。
Rei主語が「人や組織」で、何かをわざと変えるなら「増やす」。誰かがやったわけじゃなく、自然に変わるなら「増える」だよ。たとえば「人口が増えた」vs「会社が人員を増やした」って感じ。
4. Expressing Judgment and Necessity
N3 introduces vocabulary and grammar that lets you express obligation, judgment, and necessity — concepts that require a more nuanced vocabulary than simple N4 structures like 〜なければなりません.
判断（はんだん）する — to judge, to make a judgment
判断 is the noun/verb for exercising judgment. It appears frequently in reading passages about decision-making, business situations, and problem-solving.
Example: 状況（じょうきょう）を見て、自分で判断（はんだん）してください。
Please look at the situation and make your own judgment.
必要（ひつよう）— necessary, need
必要 functions both as a na-adjective (必要な書類 — necessary documents) and as a noun (必要がない — there is no need). It is softer than the grammar pattern 〜なければならない but expresses the same underlying idea in formal contexts.
Example: ビザの申請（しんせい）には、必要（ひつよう）な書類（しょるい）を全て集めてください。
For the visa application, please gather all the necessary documents.
〜べき — should, ought to
〜べき attaches to the dictionary form of a verb and expresses strong moral or social obligation — what ought to be done. It is stronger than 〜たほうがいい and more formal than everyday speech. On the N3 exam it appears in reading passages about ethics, rules, and advice.
Pattern: [Dictionary form verb] + べき(だ) / べきではない
Example: 人の話はしっかり聞くべきだ。
You ought to listen carefully to what people say.
〜はずだ — should be (expectation based on logic)
〜はずだ expresses the speaker’s confident expectation based on evidence or reasoning. It is not the same as 〜べき — it describes what logically should be the case, not what is morally required.
Pattern: [Plain form] + はずだ
Example: 彼はもうここに来ているはずだ。
He should already be here (based on what I know / what was arranged).
| Pattern | Nuance | Strength |
|---|---|---|
| 〜たほうがいい | It would be better to… | Soft suggestion |
| 〜べきだ | You ought to / should (morally) | Strong social obligation |
| 必要がある | It is necessary to… | Practical necessity |
| 〜はずだ | It should be the case (logically) | Logical expectation |
5. N3 Vocabulary in Context — Reading Practice
The N3 reading section tests your ability to understand how vocabulary functions in longer passages. Read each paragraph below and notice how N3 words combine naturally.
Passage A:
最近、この地域（ちいき）では人口（じんこう）が増えている（ふえている）。それに伴って（ともなって）、交通渋滞（こうつうじゅうたい）も増えた。市（し）は状況（じょうきょう）を判断（はんだん）し、バスの本数（ほんすう）を増やす（ふやす）ことを決めた。
Recently, the population in this area has been increasing. Along with that, traffic congestion has also increased. The city assessed the situation and decided to increase the number of buses.
Passage B:
彼女が遅刻（ちこく）した理由（りゆう）は、電車の遅延（ちえん）だった。遅延の場合（ばあい）は証明書（しょうめいしょ）をもらうべきだと知っていたが、様子（ようす）が混んでいたので諦めた（あきらめた）。
The reason she was late was a train delay. She knew she should get a certificate in cases of delay, but the place looked crowded so she gave up.
Passage C:
この試験（しけん）の目的（もくてき）は、日本語の能力（のうりょく）を正確（せいかく）に測ること（はかること）だ。合格（ごうかく）には、語彙（ごい）や文法（ぶんぽう）の知識（ちしき）だけでなく、読解（どっかい）の力（ちから）も必要（ひつよう）だ。
The purpose of this exam is to accurately measure Japanese language ability. To pass, not only vocabulary and grammar knowledge but also reading comprehension ability is necessary.
Passage D:
彼との関係（かんけい）は、仕事以外（しごといがい）では会うことがない程度（ていど）だった。しかし、このプロジェクトを通じて（つうじて）、その関係が大きく変わった。
My relationship with him was at a level where we did not meet outside of work. However, through this project, that relationship changed significantly.
Passage E:
30分以内（さんじゅっぷんいない）で完成（かんせい）させる必要（ひつよう）がある。時間（じかん）が足りない（たりない）場合（ばあい）は、判断（はんだん）して優先順位（ゆうせんじゅんい）をつけるべきだ。
It is necessary to finish within 30 minutes. If there is not enough time, you should exercise judgment and set priorities.
YukaパッセージBで「べきだと知っていたが、諦めた」って面白い使い方だね。「べき」は知っているけど実際にはしなかった、っていうニュアンスが出るんだ！
Reiそう！「べき」は義務や当然のことを表すけど、実際の行動とは別だよ。N3の読解ではこういう微妙なニュアンスが問われることが多いから、文脈をしっかり読むのが大事だよ。
6. Study Tips for N3 Vocabulary
Hitting N3 vocabulary requires a different approach than N5 or N4. Here is what works at this level.
Use Spaced Repetition — But Smarter
Spaced repetition systems (SRS) like Anki remain effective at N3, but raw flashcards are no longer enough. At this level, you need context sentences, not just word pairs. When you add a word like 判断 to Anki, include a full example sentence on the back of the card. Your brain encodes abstract words through usage patterns, not definitions alone.
Read NHK Web Easy Daily
NHK Web Easy (web.nhk.or.jp/easy/) publishes simplified news in Japanese with furigana. The vocabulary level targets roughly N3–N2. You will encounter words like 状況、関係、理由、必要 in every article because these are the words Japanese writers reach for when explaining events. Fifteen minutes of NHK Web Easy daily builds reading stamina and vocabulary simultaneously.
How to Distinguish N3 from N4 Vocabulary on the Exam
N4 vocabulary tends to be concrete and action-focused: 開ける (to open), 閉める (to close), 会う (to meet). N3 vocabulary is more abstract and relational: 判断する (to judge), 関係する (to relate to), 表現する (to express). If you see a word in a sentence about reasoning, feelings, social situations, or formal contexts and you do not recognize it, it is almost certainly N3 or higher. Flag those words for review.
7. Common Mistakes to Avoid
Mistake 1: 以上/以下 boundary ambiguity
English “more than 10” excludes 10. Japanese 10以上（じゅういじょう） includes 10 — it means “10 or more.” Similarly, 10以下（じゅういか） means “10 or less/fewer,” not “less than 10.” Many learners translate these as “above/below” and make off-by-one errors on exam questions. Always mentally add “or equal to” when you see 以上 or 以下.
Mistake 2: 増える vs. 増やす transitive confusion
Learners often use 増える when they mean 増やす. The test: does the subject actively cause the increase? 私はお金を増えた is wrong — you cannot say you “increased” money as if you did nothing. The correct form is 私はお金を増やした (I increased my money). Intransitive 増える is for things that grow on their own: お金が増えた (the money increased).
Mistake 3: 場合 vs. とき usage
Both 場合 and とき can be translated as “when,” but they are not interchangeable. とき refers to a point in time or a time-based situation: 子供のとき (when I was a child). 場合 emphasizes the conditional case or hypothetical scenario: 雨の場合は中止します (in the event of rain, it will be cancelled). Using とき for formal hypothetical conditions sounds unnatural in written Japanese.
Mistake 4: Confusing 〜べき with 〜はずだ
べき = moral/social obligation (what someone should do). はずだ = logical expectation (what should be the case based on evidence). A common error is writing 彼はここに来るべきだ when you mean he is expected to arrive, not that he morally must. Use 彼はここに来るはずだ for the logical expectation.
Quick Quiz
Test yourself with these five questions. Fill in the blank with the best word from the article.
Q1. この規則（きそく）は、社員（しゃいん）＿＿＿の人には適用（てきよう）されない。
This rule does not apply to people ________ employees.
Answer: 以外（いがい） — この規則は、社員以外の人には適用されない。
Q2. 応募（おうぼ）には18歳＿＿＿であることが必要だ。
It is necessary to be 18 ________ to apply.
Answer: 以上（いじょう） — 応募には18歳以上であることが必要だ。
Q3. 彼女は毎日運動（うんどう）して、体重（たいじゅう）を＿＿＿ようにしている。
She exercises every day and tries to ________ her body weight.
Answer: 減らす（へらす） — 彼女は毎日運動して、体重を減らすようにしている。
Q4. 急いでいる＿＿＿は、こちらの出口（でぐち）をご利用ください。
If you are in a hurry, please use this exit.
Answer: 場合（ばあい） — 急いでいる場合は、こちらの出口をご利用ください。
Q5. 自分で＿＿＿することが大切だ。
It is important to make your own ________.
Answer: 判断（はんだん） — 自分で判断することが大切だ。
Share Your Progress
Which of these N3 words do you find hardest to remember? Is it the 以上/以下 boundary, the transitive/intransitive pairs, or the abstract nouns? Share your experience in the comments below — your question might help other learners too!
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