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空

On'yomi
クウ
KUU
Kun'yomi
そら・あ.く・あ.き・あ.ける・から・す.く・す.かす・むな.しい
sora / aku / aki / akeru / kara / suku / sukasu / munashii

empty · sky · void · vacant · vacuum

Details

Strokes8
Frequency#304
Radical穴cave(5)

Description

Sky/Emptiness - vast openness, Zen concept of void, freedom.

Stroke Order

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Strokes8

Cultural Context

Etymology

Composed of '穴' (hole) and '工' (empty). Empty space like a hole.

Symbolism

Sky, void, Buddhist concept of 'emptiness'. Represents infinite possibility.

Spiritual Meaning

Represents Buddhist concept of form is emptiness - ultimate truth that all things lack inherent existence.

Seasonal

The sky changes expression with seasons. Autumn sky's high clear blue, rainy season sky's heaviness—the sky symbolizes seasons.

Component Breakdown

空=
穴工

Hole + work

Words & Expressions

Words written with 空

空気くうきair
空手からてkarate
上空じょうくうskies
架空かくうaerial
真空しんくうvacuum

Four-Character Compounds

空前絶後

くうぜんぜつご

(so marvelous or horrible that it may be) the first and probably the last

空中楼閣

くうちゅうろうかく

castle in the air

色即是空

しきそくぜくう

form is emptiness; matter is void; all is vanity

天空海濶

てんくうかいかつ

the open sky and the serene sea; as open as the sky and serene as the sea; magnanimous

徒手空拳

としゅくうけん

being empty-handed; being penniless; having no capital (for starting a business)

空即是色

くうそくぜしき

emptiness is form; illusion of the reality of matter

空々漠々

くうくうばくばく

vast; boundless; wide and empty

空理空論

くうりくうろん

impractical theory; academic discussion; doctrinairism

空々寂々

くうくうじゃくじゃく

deserted and lonesome; quiet and alone; innocent and nonattached

史上空前

しじょうくうぜん

unprecedented in history; unheard-of; epoch-making

赤手空拳

せきしゅくうけん

barehanded; having no wealth or position to rely on (aside from one's own resourcefulness) (when embarking on something)

一切皆空

いっさいかいくう

matter is void; all is vanity

天馬行空

てんばこうくう

unconstrained creativity; bold and imaginative; (like a) a heavenly steed soaring across the skies

Proverbs & Idioms

空谷の跫音

くうこくのきょうおん

Footsteps in an empty valley

A rare and welcome visitor or event

Poetry

俳句 (Haiku)

雲雀より空にやすらふ峠哉

Higher than the lark, resting in the sky — this mountain pass.

松尾芭蕉Matsuo Basho
1688
俳句 (Haiku)

凧きのふの空のありどころ

A kite in the sky — exactly where yesterday's sky was.

与謝蕪村Yosa Buson
1777

Anime & Manga

天空の城ラピュタ

Castle in the Sky

anime film

Adventure fantasy seeking a castle floating in the sky

ノーゲーム・ノーライフ

No Game No Life

anime

Sibling protagonists 'Sora' and 'Shiro' dominate games

ソードアート・オンライン

Sword Art Online

manga/anime

Adventure in ALO world where you can fly in the sky

天空侵犯

High-Rise Invasion

Anime

A well-known work with 空 in its Japanese title.

ハイキュー!! 陸 VS 空

HAIKYU!! LAND VS. AIR

Anime

A well-known work with 空 in its Japanese title.

Games

エースコンバット7

Ace Combat 7(2019)

PS4/Xbox/PC

Fighter jet action set in the sky

View on Amazon →

ゼルダの伝説 スカイウォードソード

Zelda: Skyward Sword HD(2021)

Nintendo Switch

Adventure begins from Skyloft floating in the sky

View on Amazon →

Related Figures & Stories

空海

(くうかい)
Kukai774-835

Founder of Shingon Buddhism whose name contains 'sky'

Known as Kobo Daishi. Founded Koyasan, also renowned for calligraphy

空也

Kūya903–972

Name contains 空

Kūya was an itinerant Japanese hijiri , later ordained in the Tendai sect, who was an early proselytizer of the practice of the nembutsu amongst the…

Wikipedia

円空

Enkū1632–1695

Name contains 空

Enkū was a Japanese Buddhist monk, poet and sculptor during the early Edo period.

Wikipedia

釈浄空

Chin Kung1927–2022

Name contains 空

Chin Kung AM was a Chinese Buddhist monk and scholar from the Mahayana tradition.

Wikipedia

Other kanji with the same meaning

Frequently Asked Questions

What does 空 mean in Japanese?

空 means empty, sky, void, vacant, vacuum. Sky/Emptiness - vast openness, Zen concept of void, freedom.

How do you read 空?

On'yomi: クウ (KUU). Kun'yomi: そら、あ.く、あ.き、あ.ける、から、す.く、す.かす、むな.しい (sora, aku, aki, akeru, kara, suku, sukasu, munashii).

How many strokes does 空 have?

空 has 8 strokes. Its radical is 穴 (cave).

Is 空 a good kanji for a tattoo?

空 is one of the kanji most often chosen for tattoos. It means empty, sky, void, vacant, vacuum. Read the full meaning and cultural background on this page first — some popular choices are deliberately dark.

Explore by meaning:sky · void