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ALL LEVELS・N1–N5
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4,238words (N1–N5 total)
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N5
遅い
おそい
A state of movement being slow. Example: 「あるくのが遅い」 (slow at walking). Also used to mean time being late, as in 「よるが遅い」 (late at night). The antonym is 「はやい」 (fast/early).
AI-generated translation
N2
襲う
おそう
(1) To attack suddenly. 「敵が襲う」. (2) A disaster or emotion striking suddenly. 「台風が町を襲う」「不安が襲う」.
AI-generated translation
N2
お粗末
おそまつ
A state in which the quality or content of something is poor and embarrassing. Used in expressions like 「お粗末な結果」 and 「お粗末な計画」. It is also used by the person who served a meal, as in the humble greeting 「お粗末さまでした」.
AI-generated translation
N2
穏やか
おだやか
A state of being quiet, settled, and undisturbed. Used broadly as in 「穏やかな天気」 or 「穏やかな人柄」 for weather, the sea, or a person's character. Also used for emotions, attitudes, or the atmosphere of a place.
AI-generated translation
N2
陥る
おちいる
A verb meaning to fall into an undesirable state. Used in situations of entering dangerous or difficult circumstances, as in「窮地に陥る」「混乱に陥る」.
AI-generated translation
N5
お茶
おちゃ
tea. A drink made by brewing with hot water. Often refers to Japanese green tea.
AI-generated translation
N5
お手洗い
おてあらい
A polite way of saying toilet.
AI-generated translation
N5
お父さん
おとうさん
A word for calling one's father. Also used to refer to someone else's father. When talking to others about one's own father, 「父」 is used.
AI-generated translation
N5
弟
おとうと
A younger brother, born after oneself. A younger sister is 「妹」.
AI-generated translation
N2
おどける
おどける
To deliberately clown around or make comical gestures in order to make people laugh. Used in expressions like 「おどけた表情」 and 「おどけて見せる」.
AI-generated translation
N5
男
おとこ
man. One of the sexes of a person. The antonym is 「女」 (woman).
AI-generated translation
N5
男の子
おとこのこ
boy. A male child.
AI-generated translation
N5
一昨日
おととい
The day before yesterday. Read as 「おととい」. Often written in hiragana.
AI-generated translation
N5
一昨年
おととし
The year before last year. Read as 「おととし」.
AI-generated translation
N3, N5
大人
おとな
adult. A grown person, not a child. Read as 「おとな」.
AI-generated translation
N2
劣る
おとる
A state in which quality or ability is lower compared to others. Used as in 「性能が劣る」 or 「人後に劣らない」. A basic word expressing comparative superiority or inferiority, often appearing in formal contexts.
AI-generated translation
N2
衰える
おとろえる
Vigor or strength gradually weakening. Used in situations where the vitality of a person, organization, or nation declines over time, as in「体力が衰える」「国力が衰える」.
AI-generated translation
N5
お腹
おなか
The middle part of the body where food goes. Example: 「お腹がすく」 (to get hungry), 「お腹が痛い」 (to have a stomachache).
AI-generated translation
N5
同じ
おなじ
same. Having no difference. Example: 「同じ学校」 (the same school), 「同じ大きさ」 (the same size). The antonym is 「ちがう」 (different).
AI-generated translation
N5
お兄さん
おにいさん
A word for calling one's older brother. Someone else's older brother is also called 「お兄さん」.
AI-generated translation
N5
お姉さん
おねえさん
A word for calling one's older sister. Someone else's older sister is also called 「お姉さん」.
AI-generated translation
N5
おばあさん
おばあさん
An elderly woman. Also, one's father's or mother's mother.
AI-generated translation
N5
おばさん
おばさん
A word for one's father's or mother's sister. Also used for an unfamiliar adult woman. Written with the kanji 「伯母さん」 or 「叔母さん」, but usually written in hiragana.
AI-generated translation
N5
覚える
おぼえる
To take something into one's mind and not forget it. Example: 「ことばを覚える」 (to memorize words). The antonym is 「わすれる」 (to forget).
AI-generated translation
N3, N5
重い
おもい
A state requiring strength to lift. Example: 「重いかばん」 (a heavy bag). The antonym is 「軽い」 (light).
AI-generated translation
N2
思い当たる
おもいあたる
Realizing, with the help of some trigger, a memory or cause that had been vague until then. Used as in 「思い当たる節がある」 or 「そういえば思い当たる」. Carries the nuance of realizing something belatedly.
AI-generated translation
N2
思い切り
おもいきり
A state of not hesitating and putting forth all one's strength or feeling. Used adverbially as in 「思い切り走る」 or 「思い切り笑う」, expressing carrying out an action with full force without restraint. The adverbial usage derived from the conjunctive form is central, with a noun usage meaning "resolve."
AI-generated translation
N2
思い込む
おもいこむ
To deeply believe something and not consider other possibilities. Used as in 「勝手に思い込む」 or 「一方的に思い込む」, mostly in cases where one believes something without verifying whether it is true.
AI-generated translation
N2
思い遣り
おもいやり
A heart that considers others' feelings and circumstances and acts kindly. Used as in 「思い遣りのある人」 or 「思い遣りに欠ける」. A positive word expressing the attitude of putting oneself in the other person's position and showing care.
AI-generated translation
N2, N5
面白い
おもしろい
A state of feeling like laughing, or feeling fun. Example: 「面白い話」 (an interesting story). Also used for books or work, meaning "interesting."
AI-generated translation
N2, N4
表
おもて
The side of something that faces forward or can be seen from the outside. The antonym is 「裏」 (the back/reverse side). The same 「表」 read as 「ひょう」 is a different word referring to something in which figures or items are arranged vertically and horizontally.
AI-generated translation
N5
泳ぐ
およぐ
swim. To move through the water by moving one's hands and feet. Example: 「海で泳ぐ」 (to swim in the sea).
AI-generated translation
N2
及び腰
およびごし
Originally, an unstable half-crouched posture in which one cannot fully straighten the hips. By extension, it describes a hesitant attitude lacking confidence and passive, as if shrinking back. Used in expressions like 「及び腰で交渉に臨む」 and 「政府の及び腰な姿勢」.
AI-generated translation
N2
及ぼす
およぼす
To exert influence, damage, etc. on something else. Often combined with set nouns, as in 影響を及ぼす (have an effect on), 損害を及ぼす (cause damage to). 「及ぼす」 is used for the side that exerts the effect, and 「及ぶ」 for the side the effect reaches: 「影響を及ぼす」 versus 「影響が及ぶ」.
AI-generated translation
N2
折り返し
おりかえし
Turning back partway, or the point at which one turns back. By extension, it also means to reply or contact someone back promptly upon receiving their message. Frequently used as a business expression, as in 「折り返し電話する」 and 「折り返しご連絡ください」.
AI-generated translation
N2
折り紙
おりがみ
A game or craft of folding paper into shapes such as animals or flowers. Also refers to a guarantee by an authoritative person that something has assured value or skill, used idiomatically in the form 「折り紙つき」. The latter meaning derives from the fact that authentication certificates were folded papers.
AI-generated translation
N5
降りる
おりる
To move from a high place to a low place. To get out of a train or car. Example: 「バスを降りる」 (to get off a bus). The antonym is 「のる」 (to get on).
AI-generated translation
N2
織る
おる
To combine threads vertically and horizontally to make cloth. Incorporating another element into a story is also expressed as 「織り込む」「織り交ぜる」.
AI-generated translation
N2
愚か
おろか
Lacking careful thought, so that one's judgment or behavior is not wise. Used to describe a person or their words and actions.
AI-generated translation
N5
終わる
おわる
end. For something that was continuing to reach its stopping point. Example: 「じゅぎょうが終わる」 (class ends). The antonym is 「始まる」 (to begin).
AI-generated translation
N5
音楽
おんがく
music. Something enjoyed through the sound of singing or instruments.
AI-generated translation
N2
恩恵
おんけい
A blessing or benefit received from others, nature, and so on. Used in expressions like 「恩恵を受ける」 and 「科学の恩恵」.
AI-generated translation
N2
温床
おんしょう
A hotbed with raised soil temperature used to grow plant seedlings. By extension, it refers to a cause or environment in which something undesirable arises and grows. It is often used figuratively, as in 「犯罪の温床」 and 「不正の温床」.
AI-generated translation
N5
女
おんな
woman. One of the sexes of a person. The antonym is 「男」 (man).
AI-generated translation
N5
女の子
おんなのこ
girl. A female child.
AI-generated translation
N2
音波
おんぱ
Vibrations transmitted through air or other media that can be heard as sound. Used in technical contexts of physics and engineering, such as 「超音波」 or 「音波探知機」. A specialized term encountered in science classes or descriptions of medical equipment.
AI-generated translation
N2
改革
かいかく
To fundamentally change a system or structure to make it better. A written word used in political and social contexts.
AI-generated translation
N2
快活
かいかつ
「快」 means pleasant, and 「活」 means lively; together they mean pleasantly lively. It describes a character or attitude that is bright and energetic. Used in expressions like 「快活に笑う」 or 「快活な少年」, it is a positive word expressing lively brightness.
AI-generated translation
N2
階級
かいきゅう
A rank on an ordered scale, fixed within an organization or a sport according to ability or achievement. As in 「軍隊の階級」「柔道の階級」, it refers to the graded steps of position. It also refers to a layer of people divided within society by status, property and the like; as in 「労働者階級」「階級社会」, it is used when speaking about society or history.
AI-generated translation
N2
海峡
かいきょう
A narrow sea passage between two landmasses. Often used as part of a place name, as in 「津軽海峡」.
AI-generated translation
Vocabulary data on this site is based on the JMdict/EDICT project (© Electronic Dictionary Research and Development Group, CC BY-SA 4.0). JLPT level classification is our own assessment using AI (Claude) and is not an official JLPT standard.