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Nihongo

Classroom

Jōyō KanjiOrganized by Onyomi reading

かい kai

 

    kanji

    Meaning

    Meet

    Reading

    kunyomi

    a

    onyomiかい

    kai

    Parts

    Person Two Private

    Example Word

    協会: association. The Japanese noun '協会 (きょうかい)' refers to an 'association' or 'society', typically an organized group of people with a common purpose or interest. It is often used in the context of professional, cultural, or social organizations. For example: She is a member of the music association「彼女は音楽協会のメンバーです」(かのじょはおんがくきょうかいのメンバーです). The association held a meeting yesterday「協会は昨日会議を開きました」(きょうかいはきのうかいぎをひらきました). This term is commonly seen in the names of organizations, such as '日本医師協会 (にほんいしきょうかい)' (Japan Medical Association).

    Radical

    Stroke Count

    6

    JLPT

    N4

    Grade

    2

    Frequency

    98

    Handwriting

    kanji

    Meaning

    Solve, Untie

    Reading

    kunyomi

    to

    onyomi

    ge

    かい

    kai

    Parts

    Corner, Angle Sword Cow

    Example Word

    解明: clarification. The Japanese noun '解明 (かいめい)' refers to the act of clarifying or elucidating something, often used in contexts where a mystery, problem, or complex situation is being resolved or explained. It is commonly used in academic, scientific, or investigative settings. For example: The clarification of the mystery was achieved「その謎の解明がなされた」(そのなぞのかいめいがなされた). Researchers are working on the clarification of the phenomenon「研究者たちはその現象の解明に取り組んでいる」(けんきゅうしゃたちはそのげんしょうのかいめいにとりくんでいる). The word emphasizes the process of uncovering or making something clear that was previously unknown or misunderstood.

    Radical

    Stroke Count

    13

    JLPT

    N3

    Grade

    5

    Frequency

    213

    Handwriting

    kanji

    Meaning

    Sea

    Reading

    kunyomiうみ

    umi

    onyomiかい

    kai

    Parts

    Water (水)Every

    Example Word

    海岸: coast. The Japanese noun '海岸 (かいがん)' refers to the 'coast' or 'seashore', specifically the area where the land meets the sea. It is commonly used to describe beaches, cliffs, or any shoreline area. This word is neutral and can be used in both formal and informal contexts. For example: The coast is beautiful「海岸は美しい」(かいがんはうつくしい). We walked along the coast「私たちは海岸を歩いた」(わたしたちはかいがんをあるいた). The word can also be used in compound nouns, such as '海岸線 (かいがんせん)' (coastline) or '海岸警備 (かいがんけいび)' (coast guard).

    Radical

    Stroke Count

    9

    JLPT

    N4

    Grade

    2

    Frequency

    219

    Handwriting

    kanji

    Meaning

    Open

    Reading

    kunyomi

    a

    ひら

    hira

    onyomiかい

    kai

    Parts

    Gate Open

    Example Word

    再開: resumption. The Japanese verbal noun '再開 (さいかい)' means 'resumption' or 'restarting'. It is used to describe the act of starting something again after it has been paused, stopped, or interrupted. This word is commonly used in contexts such as events, activities, or processes that are being resumed. For example: The meeting will resume tomorrow「会議は明日再開します」(かいぎはあしたさいかいします). Classes resumed after the holiday「休みの後、授業が再開した」(やすみのあと、じゅぎょうがさいかいした). It is important to note that '再開' often implies a formal or planned restart, rather than a spontaneous one.

    Radical

    Stroke Count

    12

    JLPT

    N4

    Grade

    3

    Frequency

    244

    Handwriting

    kanji

    Meaning

    World

    Reading

    onyomiかい

    kai

    Parts

    Rice field Mediate, Jammed in

    Example Word

    界: world or realm. The Japanese suffix '界 (かい)' is used to denote a world, realm, or sphere, often referring to a specific domain or field of activity. It can be used in various contexts to describe different areas of interest or expertise. For example: the world of art「芸術界」(げいじゅつかい). the business world「ビジネス界」(ビジネスかい). This suffix is commonly attached to nouns to specify a particular area or community, such as '科学界 (かがくかい) (scientific community)' or '音楽界 (おんがくかい) (music world)'. It is important to note that '界' can also be used in a more abstract sense to describe a realm or domain, such as '精神界 (せいしんかい) (spiritual realm)'.

    Radical

    Stroke Count

    9

    JLPT

    N4

    Grade

    3

    Frequency

    309

    Handwriting

    kanji

    Meaning

    Storey

    Reading

    onyomiかい

    kai

    Parts

    All Mound (阜)

    Example Word

    段階: stage. The Japanese noun '段階 (だんかい)' refers to a 'stage' or 'phase' in a process, development, or progression. It is commonly used to describe steps or levels in a sequence, such as in education, projects, or personal growth. For example: This is the final stage of the project「これはプロジェクトの最終段階です」(これはぷろじぇくとのさいしゅうだんかいです). He is in the early stages of learning Japanese「彼は日本語学習の初期段階です」(かれはにほんごがくしゅうのしょきだんかいです). The word can also imply a gradation or ranking, such as in levels of difficulty or achievement.

    Radical

    Stroke Count

    12

    JLPT

    N2

    Grade

    3

    Frequency

    375

    Handwriting

    kanji

    Meaning

    All

    Reading

    kunyomiみな

    mina

    みんな

    minna

    onyomiかい

    kai

    Parts

    Compare, Ratio White

    Example Word

    皆さん: everyone. The Japanese noun '皆さん (みなさん)' is a polite and respectful way to address or refer to a group of people, meaning 'everyone' or 'all of you'. It is commonly used in formal or polite situations, such as speeches, announcements, or when addressing an audience. For example: Good morning, everyone!「皆さん、おはようございます!」(みなさん、おはようございます). Thank you, everyone, for coming today「皆さん、今日は来てくれてありがとうございます」(みなさん、きょうはきてくれてありがとうございます). The term is inclusive and conveys a sense of respect towards the group being addressed.

    Radical

    Stroke Count

    9

    JLPT

    N3

    Grade

    7

    Frequency

    403

    Handwriting

    kanji

    Meaning

    Weird, Suspicious

    Reading

    kunyomiあや

    aya

    onyomi

    ke

    かい

    kai

    Parts

    Holy

    Example Word

    怪しい: suspicious. The Japanese adjective '怪しい (あやしい)' primarily means 'suspicious'. It is used to describe something or someone that seems dubious, questionable, or not entirely trustworthy. This can apply to situations, objects, or people. For example: That person looks suspicious「あの人は怪しい」(あのひとはあやしい). The story sounds suspicious「その話は怪しい」(そのはなしはあやしい). Additionally, '怪しい' can sometimes imply a sense of mystery or the supernatural, as in: The old house looks eerie「その古い家は怪しい」(そのふるいいえはあやしい). The nuance of the word can vary depending on context, but it generally conveys a sense of doubt or unease.

    Radical

    Stroke Count

    8

    JLPT

    N1

    Grade

    8

    Frequency

    455

    Handwriting

    kanji

    Meaning

    Reform

    Reading

    kunyomiあらた

    arata

    onyomiかい

    kai

    Parts

    Oneself Strike

    Example Word

    改正: revision. The Japanese verbal noun '改正 (かいせい)' means 'revision' or 'amendment'. It is commonly used in contexts where laws, regulations, or systems are being modified or updated. For example: The law underwent a revision「法律が改正された」(ほうりつがかいせいされた). The government is planning to amend the policy「政府は政策を改正する予定です」(せいふはせいさくをかいせいするよていです). This term is often used in formal or official settings, such as legal documents, government announcements, or academic discussions. It implies a deliberate and systematic change to improve or update something.

    Radical

    Stroke Count

    7

    JLPT

    N2

    Grade

    4

    Frequency

    588

    Handwriting

    kanji

    Meaning

    Mediate, Jammed in

    Reading

    onyomiかい

    kai

    Parts

    Person 丿Katakana no Stick

    Example Word

    厄介: trouble. The Japanese noun '厄介 (やっかい)' primarily means 'trouble' or 'bother'. It refers to something that is troublesome, inconvenient, or difficult to deal with. This word can be used to describe situations, tasks, or even people who are causing difficulty. For example: He is a troublesome person「彼は厄介な人だ」(かれはやっかいなひとだ). This problem is a real hassle「この問題は本当に厄介だ」(このもんだいはほんとうにやっかいだ). The word can also imply a sense of burden or responsibility, as in taking care of someone who is dependent on you.

    Radical

    Stroke Count

    4

    JLPT

    N2

    Grade

    7

    Frequency

    591

    Handwriting

    kanji

    Meaning

    Pleasant

    Reading

    kunyomiこころよ

    kokoroyo

    onyomiかい

    kai

    Parts

    Decide

    Example Word

    快い: pleasant. The Japanese adjective '快い (こころよい)' means 'pleasant'. It is used to describe something that is agreeable, enjoyable, or soothing to the mind or senses. This word often conveys a sense of comfort or satisfaction. For example: The breeze feels pleasant「風が快い」(かぜがこころよい). His words were pleasant to hear「彼の言葉は快かった」(かれのことばはこころよかった). It can also be used in more abstract contexts, such as describing a pleasant feeling or atmosphere. Note that this word is more formal and less commonly used in everyday conversation compared to simpler adjectives like '楽しい (たのしい)' (fun) or '気持ちいい (きもちいい)' (feels good).

    Radical

    Stroke Count

    7

    JLPT

    N2

    Grade

    5

    Frequency

    607

    Handwriting

    kanji

    Meaning

    Revolve, Times

    Reading

    kunyomiまわ

    mawa

    onyomiかい

    kai

    Parts

    Mouth

    Example Word

    回復: recovery. The Japanese verbal noun '回復 (かいふく)' means 'recovery'. It refers to the process of returning to a normal state of health, mind, or strength after an illness, injury, or difficult situation. It can also be used in contexts such as economic recovery or the recovery of lost items. For example: The patient's recovery was quick「患者の回復は早かった」(かんじゃのかいふくははやかった). The economy is showing signs of recovery「経済は回復の兆しを見せている」(けいざいはかいふくのきざしをみせている).

    Radical

    Stroke Count

    6

    JLPT

    N3

    Grade

    2

    Frequency

    613

    Handwriting

    kanji

    Meaning

    Picture

    Reading

    onyomiかい

    kai

    e

    Parts

    Thread Meet

    Example Word

    絵本: picture book. The Japanese noun '絵本 (えほん)' refers to a 'picture book', which is a book that combines illustrations and text, often aimed at children. These books are widely used for storytelling and early education in Japan. Example sentences: I bought a picture book for my niece「姪のために絵本を買いました」(めいのためにえほんをかいました). This picture book is very popular among children「この絵本は子供たちにとても人気です」(このえほんはこどもたちにとてもにんきです). The word is commonly used in contexts involving children's literature, education, and storytelling.

    Radical

    Stroke Count

    12

    JLPT

    N3

    Grade

    2

    Frequency

    615

    Handwriting

    kanji

    Meaning

    Street, Boulevard

    Reading

    kunyomiまち

    machi

    onyomiがい

    gai

    かい

    kai

    Parts

    Go

    Example Word

    市街: city. The Japanese noun '市街 (しがい)' refers to the urban or city area, typically the built-up part of a city with streets, buildings, and infrastructure. It is often used to describe the central or commercial district of a city. For example: The city is bustling with activity「市街は活気で溢れている」(しがいわかっきであふれている). We walked through the city at night「私たちは夜に市街を歩いた」(わたしたちはよるにしがいをあるいた). This term is commonly used in contexts related to urban planning, geography, or everyday descriptions of city life.

    Radical

    Stroke Count

    12

    JLPT

    N1

    Grade

    4

    Frequency

    735

    Handwriting

    kanji

    Meaning

    Bosom, Pocket

    Reading

    kunyomiなつ

    natsu

    ふところ

    futokoro

    onyomiかい

    kai

    Parts

    Ten Net Clothes

    Example Word

    懐かしい: nostalgic. The Japanese adjective '懐かしい (なつかしい)' means 'nostalgic' or 'evoking fond memories'. It is used to describe something that brings back memories of the past, often with a sense of longing or warmth. This word is commonly used when encountering something familiar from one's past, such as a place, a song, or an object. For example: This song is nostalgic「この歌は懐かしい」(このうたはなつかしい). I feel nostalgic when I see this photo「この写真を見ると懐かしい気持ちになる」(このしゃしんをみるとなつかしいきもちになる). The word can also be used to express a sense of missing someone or something from the past, as in 'I miss my hometown'「故郷が懐かしい」(こきょうがなつかしい).

    Radical

    Stroke Count

    16

    JLPT

    N1

    Grade

    9

    Frequency

    905

    Handwriting

    kanji

    Meaning

    Remains

    Reading

    kunyomiむくろ

    mukuro

    onyomiがい

    gai

    かい

    kai

    Parts

    Bone

    Radical

    Stroke Count

    16

    Grade

    10

    Frequency

    1172

    Handwriting

    kanji

    Meaning

    Contraption

    Reading

    onyomiかい

    kai

    Parts

    Tree, Wood Admonish, Commandment

    Example Word

    機械: machine or mechanism. The Japanese noun '機械 (きかい)' primarily means 'machine' and refers to a device or apparatus that performs a specific task, often involving mechanical or automated processes. It can also mean 'mechanism', referring to the internal workings or structure of a machine. This word is commonly used in contexts related to technology, engineering, and industry. For example: This machine is very advanced「この機械はとても進んでいる」(このきかいはとてもすすんでいる). The mechanism of this clock is complicated「この時計の機械は複雑だ」(このとけいのきかいはふくざつだ). Note that '機械' is often used in technical or formal contexts, distinguishing it from simpler devices or tools.

    Radical

    Stroke Count

    11

    JLPT

    N2

    Grade

    4

    Frequency

    1219

    Handwriting

    kanji

    Meaning

    Ashes

    Reading

    kunyomiはい

    hai

    onyomiかい

    kai

    Parts

    Cliff Fire

    Example Word

    灰皿: ashtray. The Japanese noun '灰皿 (はいざら)' refers to an 'ashtray', a container used for collecting ash and cigarette butts. It is commonly found in smoking areas, restaurants, or homes where smoking is permitted. Example sentences: Please use the ashtray「灰皿を使ってください」(はいざらをつかってください). The ashtray is full「灰皿がいっぱいです」(はいざらがいっぱいです). This word is straightforward and does not carry additional meanings or nuances beyond its literal definition.

    Radical

    Stroke Count

    6

    JLPT

    N2

    Grade

    6

    Frequency

    1227

    Handwriting

    kanji

    Meaning

    Repent, Regret

    Reading

    kunyomi

    ku

    くや

    kuya

    onyomiかい

    kai

    Parts

    Every

    Example Word

    後悔: regret. The Japanese verbal noun '後悔 (こうかい)' means 'regret'. It refers to the feeling of sadness, repentance, or disappointment over something that has happened or something one has done. It is often used to express remorse or a wish that things had been done differently. For example: I regret not studying harder「もっと勉強しなかったことを後悔している」(もっとべんきょうしなかったことをこうかいしている). He regrets his decision「彼は自分の決断を後悔している」(かれはじぶんのけつだんをこうかいしている). This word is commonly used in both formal and informal contexts to express personal feelings of regret.

    Radical

    Stroke Count

    9

    JLPT

    N1

    Grade

    8

    Frequency

    1290

    Handwriting

    kanji

    Meaning

    Demolition, Break down

    Reading

    kunyomiこわ

    kowa

    onyomiかい

    kai

    Parts

    Soil Ten Net Clothes

    Example Word

    崩壊: collapse. The Japanese noun '崩壊 (ほうかい)' means 'collapse'. This term is used to describe the sudden and complete failure or breakdown of a system, structure, or organization. It can refer to physical collapses, such as buildings or mountains, as well as metaphorical collapses, such as societal systems or relationships. For example: the collapse of the old regime「旧体制の崩壊」(きゅうたいせいのほうかい). The mountain collapsed due to the earthquake「地震で山が崩壊した」(じしんでやまがほうかいした). The term can also be used in a more abstract sense, such as the collapse of a theory or idea.

    Radical

    Stroke Count

    16

    JLPT

    N1

    Grade

    7

    Frequency

    1323

    Handwriting

    kanji

    Meaning

    Lid

    Reading

    kunyomiふた

    futa

    かこう

    kakou

    けだ

    keda

    onyomiこう

    kou

    がい

    gai

    かい

    kai

    Parts

    Grass

    Example Word

    蓋: lid. The Japanese noun '蓋 (ふた)' means 'lid'. It refers to a cover or top that is placed over a container to close or seal it. This word is commonly used in everyday contexts, such as when referring to the lid of a pot, jar, or bottle. For example: Please put the lid on the pot「鍋に蓋をしてください」(なべにふたをしてください). The lid of this jar is hard to open「この瓶の蓋は開けにくい」(このびんのふたはあけにくい). The word can also be used metaphorically to describe something that conceals or hides, as in '蓋をする (ふたをする)' which means 'to cover up' or 'to hide something'.

    Radical

    Stroke Count

    13

    Grade

    10

    Frequency

    1333

    Handwriting

    kanji

    Meaning

    Admonish, Commandment

    Reading

    kunyomiいまし

    imashi

    onyomiかい

    kai

    Parts

    Twenty

    Example Word

    警戒: caution. The Japanese verbal noun '警戒 (けいかい)' means 'caution' or 'vigilance'. It refers to the act of being watchful or alert to potential danger or trouble. This word is often used in contexts where one needs to be careful or on guard, such as in security, safety, or even interpersonal relationships. For example: The police are on high alert「警察は警戒を強めている」(けいさつはけいかいをつよめている). We must be cautious of natural disasters「自然災害に警戒しなければならない」(しぜんさいがいにけいかいしなければならない). The word can also be used in phrases like '警戒心 (けいかいしん)', which means 'sense of caution' or 'wariness'.

    Radical

    Stroke Count

    7

    JLPT

    N1

    Grade

    7

    Frequency

    1421

    Handwriting

    kanji

    Meaning

    Defile

    Reading

    kunyomiつい

    tsui

    つぶ

    tsubu

    onyomiかい

    kai

    e

    Parts

    Water (水)Precious

    Example Word

    潰す: ruin or crush. The Japanese verb '潰す (つぶす)' has two primary meanings. The first is 'to crush,' which refers to physically destroying something by applying pressure, such as crushing a can or squashing an insect. For example: I crushed the can「缶を潰した」(かんをつぶした). The second meaning is 'to ruin,' which refers to causing something to fail or be destroyed, often in a metaphorical sense, such as ruining plans or wasting time. For example: He ruined the plan「彼は計画を潰した」(かれはけいかくをつぶした). The verb can also imply wasting resources or opportunities, as in 'to squander.' The nuance depends on the context, so it's important to pay attention to the object being acted upon.

    Radical

    Stroke Count

    15

    Grade

    10

    Frequency

    1600

    Handwriting

    kanji

    Meaning

    Lump

    Reading

    kunyomiかたまり

    katamari

    onyomiかい

    kai

    Parts

    Soil Demon, Ogre

    Radical

    Stroke Count

    13

    JLPT

    N1

    Grade

    8

    Frequency

    1690

    Handwriting

    kanji

    Meaning

    Harmony

    Reading

    kunyomiかな

    kana

    やわ

    yawa

    onyomiかい

    kai

    Parts

    Say (言)All

    Radical

    Stroke Count

    16

    Grade

    10

    Frequency

    1903

    Handwriting

    kanji

    Meaning

    Kidnap

    Reading

    onyomiかい

    kai

    Parts

    Hand (手)Sword Mouth

    Radical

    Stroke Count

    8

    JLPT

    N1

    Grade

    9

    Frequency

    2044

    Handwriting

    kanji

    Meaning

    Square character style, Correctness

    Reading

    onyomiかい

    kai

    Parts

    Tree, Wood All

    Radical

    Stroke Count

    13

    Grade

    10

    Frequency

    2130

    Handwriting

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Onyomi reading Groups

Group 18 of 305