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ALL LEVELS・N1–N5
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4,238words (N1–N5 total)
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N1
疎か
おろそか
To handle something one is supposed to do carelessly and cut corners on it. Used in expressions like 「練習を疎かにする」, it is used in the sense of treating lightly something that ought to be given effort.
AI-generated translation
N4
終わり
おわり
For something to come to an end, the final part. The antonym is 「はじめ」 (the beginning).
AI-generated translation
N1
音響
おんきょう
The resonance of sound, or the sound effects produced by audio equipment. Used in expressions like 「音響効果」 or 「音響設備」 in contexts dealing with sound quality at concerts, films, or halls. A specialized and formal word.
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
N1
温厚
おんこう
A state of being calm, with good character and considerate of others. Used as in 「温厚な人物」 or 「温厚篤実」, a formal word mainly used to praise a person's personality and character. Includes the sense of composure that does not give way to anger or irritation.
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
N1
音信
おんしん
Contact through letters or telephone. Used in situations expressing whether contact with another person is maintained or has been broken, as in「音信不通」「音信が途絶える」. In older usage it was also read「いんしん」, and that reading still survives in some contexts.
AI-generated translation
N1
温存
おんぞん
Keeping something important without using it. Used as in 「主力選手を温存する」 or 「余力を温存する」 to mean not using it now in preparation for an important future scene. The object is limited to "things that decrease when used," such as strength, forces, or funds.
AI-generated translation
N1
温暖化
おんだんか
A long-term rise in the average temperature of the entire planet. Primarily used in the form 「地球温暖化」 (global warming), and frequently appears in contexts of environmental issues. Often refers to climate change caused by human social and economic activities.
AI-generated translation
N1
音頭
おんど
A word for being the first to raise one's voice before a crowd, setting the rhythm and bringing everyone together. A set expression used in forms like「音頭を取る」「乾杯の音頭」.
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
N1
穏便
おんびん
A word describing the manner of handling things calmly without escalating them. A formal expression used in situations of settling matters without bringing conflicts or problems to the surface, as in「穏便に済ませる」「穏便な解決」.
AI-generated translation
N1
温和
おんわ
For one's personality to be gentle and not sharp-tongued. It is also used to describe a climate that is warm and mild.
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
N4
会議
かいぎ
meeting. To gather with others to discuss something, such as for work.
AI-generated translation
N4
会議室
かいぎしつ
meeting room. A room for holding meetings.
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
N1
回顧
かいこ
「回」 means to turn back or to reflect, and 「顧」 means to look back; the word combines two synonymous characters. It refers to looking back and recalling past events or one's own experiences. Used in expressions like 「半生を回顧する」 or 「回顧録」, it is used in formal contexts of looking back on the past.
AI-generated translation
N2
解雇
かいこ
「解」 means to undo, and 「雇」 means to hire; together they mean to undo an employment relationship. It refers to a company unilaterally dismissing someone who has been employed. Used in expressions like 「解雇する」 or 「不当解雇」, in situations of the employer ending the employment relationship. Frequently appears in legal and labor contexts.
AI-generated translation
N2
介護
かいご
To care for an elderly or sick person, helping with eating, bathing, moving around, and the like.
AI-generated translation
N2
外交
がいこう
Building relations between countries and settling issues through talks; diplomacy. Used as in 外交官 (diplomat), 外交問題 (diplomatic issue).
AI-generated translation
N2
会合
かいごう
People gathering for consultation or discussion; also, the gathering itself. Covers a wider range of formality than 会議 (meeting) and is mostly used in writing.
AI-generated translation
N2
開催
かいさい
To hold and carry out a meeting, event, tournament, or the like.
AI-generated translation
N2
解釈
かいしゃく
Understanding and explaining the meaning of words or things in one's own way; interpretation. Used where the same thing can be understood differently by different people, as in 法律の解釈 (interpretation of the law), 良い方に解釈する (take it in a favorable way).
AI-generated translation
N2
改修
かいしゅう
To repair and fix up defective parts of a building or facility. Mainly applies to structures and facilities.
AI-generated translation
N1, N2
回収
かいしゅう
To collect and take back items that have already been distributed or used.
AI-generated translation
N2
怪獣
かいじゅう
A huge, frightening imaginary creature that appears in stories or movies.
AI-generated translation
N2
解除
かいじょ
To cancel a restriction or agreement that has been set, returning to the original free state. 「警報を解除する」「契約を解除する」.
AI-generated translation
N4
会場
かいじょう
venue. A place where a ceremony, tournament, exhibition, etc., is held.
AI-generated translation
N2
解析
かいせき
「解」 means to undo or break down, and 「析」 means to separate; together they mean to break apart and examine in detail. It refers to dividing a complex matter into elements and investigating its structure or content in detail. Used in expressions like 「データ解析」 or 「画像解析」, it is a formal word used in technical and research contexts.
AI-generated translation
N2
回送
かいそう
(1) To move a vehicle to another location without carrying passengers or cargo. 「回送電車」. (2) To forward mail or the like that has arrived to a different address.
AI-generated translation
N1, N2
階層
かいそう
(1) A stratum formed when society is divided by status or income. 「富裕階層」. (2) A structure made up of layers stacked one on another. 「階層構造」.
AI-generated translation
N1
快諾
かいだく
「快」 means pleasant, and 「諾」 means to consent; together they mean to consent gladly. It refers to gladly accepting a request or offer from another. Used in expressions like 「出演を快諾する」, it is a formal word for accepting another's request with pleasure.
AI-generated translation
N2
開拓
かいたく
It refers to opening up and expanding undeveloped land, or new fields and markets. Used in expressions like 「荒れ地を開拓する」, 「新市場を開拓する」, or 「販路を開拓する」, in situations of opening up for the first time a domain that no one has touched.
AI-generated translation
N2
会談
かいだん
To hold formal talks with an important counterpart in an official setting. Used in political and diplomatic contexts.
AI-generated translation
N1
かいつまむ
かいつまむ
It refers to extracting only the key points and speaking briefly. Used in expressions like 「要点をかいつまんで話す」 or 「かいつまんで説明する」, in situations of summing up a long story to convey it briefly.
AI-generated translation
N2
改定
かいてい
To newly re-establish a rule, fee, or the like. 「料金の改定」. A different word from 「改訂」, which has the same reading; this word applies to systems, prices, and the like.
AI-generated translation
N2
改訂
かいてい
To correct and update the content of a book or piece of writing. 「教科書の改訂」. Easily confused with 「改定」, which has the same reading, but this word applies to books and writing.
AI-generated translation
N1, N2
街道
かいどう
A main road connecting towns. Also used figuratively, as in 「出世街道」.
AI-generated translation
N2
介入
かいにゅう
「介」 means to come between, and 「入」 means to enter; together they mean to step in between. It refers to a third party stepping in to become involved in the affairs of the parties concerned. Used in expressions like 「軍事介入」 or 「司法介入」, it is a formal word for situations of external intervention. It frequently appears in political, international relations, and organizational contexts.
AI-generated translation
N2
解任
かいにん
「解」 means to undo, and 「任」 means a duty or office; together they mean to undo an office. It refers to removing a person from an office or duty to which they had been appointed. Used in expressions like 「役員を解任する」, in situations where an organization unilaterally relieves someone of office. Frequently appears in legal and organizational contexts.
AI-generated translation
N2
介抱
かいほう
「介」 means to help or to come between, and 「抱」 means to embrace; together they mean to come between and care for someone in one's arms. It refers to caring for a sick person, an injured person, or someone unable to move due to drunkenness. Used in expressions like 「酔った友人を介抱する」, in situations of nursing someone temporarily weakened.
AI-generated translation
N2
解明
かいめい
「解」 means to unravel or to clarify, and 「明」 means to make clear; together they mean to unravel and make clear. It refers to investigating and making clear what has been unknown. Used in expressions like 「真相を解明する」 or 「事故原因の解明」, in situations of uncovering hidden facts.
AI-generated translation
N2
解約
かいやく
「解」 means to undo, and 「約」 means a contract; together they mean to undo a contract. It refers to canceling a contract that has been concluded. Used in expressions like 「契約を解約する」 or 「保険を解約する」, in situations of ending an agreement that has been established.
AI-generated translation
N1
解離
かいり
「解」 means to break apart and become loose, and 「離」 means to separate; the word combines two synonymous characters. It refers to something that had been gathered into one breaking apart. Used in expressions like 「組織から解離する」 or 「物質が解離して別の状態になる」, it is a formal word for situations of bonds becoming undone and separating. It is also seen in chemistry and psychology contexts.
AI-generated translation
N1
乖離
かいり
A divergence or gap between two things that should naturally align. Used in expressions like 「理想と現実の乖離」 (a gap between ideal and reality) or 「世論との乖離」 (a divergence from public opinion), it refers to the distance that arises between two matters. A formal word frequently seen in editorials and critical essays.
AI-generated translation
N4
会話
かいわ
conversation. Talking with a person, discussing something together.
AI-generated translation
N4
帰り
かえり
Returning to home or one's original place, or the time of doing so. The antonym is 「行き」 (going).
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.