開 – open, unfold, unseal

12 strokesTaught in grade 3#59 in newspaper frequencyN5 vocabulary

The kanji 開 means open, unfold, unseal. Its on’yomi (Chinese-derived reading) is カイ (kai); its kun’yomi (native Japanese reading) is ひら.く、ひら.き、-びら.き、ひら.ける、あ.く、あ.ける (hiraku, hiraki, biraki, hirakeru, aku, akeru). It is written with 12 strokes, under radical 門 (no. 169).

Stroke order

Stroke order from KanjiVG. Practise others with the stroke order lookup.

Readings

Type	Reading	Romaji
On’yomi	カイ	kai
Kun’yomi	ひら.く	hiraku
Kun’yomi	ひら.き	hiraki
Kun’yomi	-びら.き	biraki
Kun’yomi	ひら.ける	hirakeru
Kun’yomi	あ.く	aku
Kun’yomi	あ.ける	akeru

A dot separates the kanji’s part from the okurigana (kana written after it), e.g. まな.ぶ → 学ぶ.

Radical and components

Radical: 門 (Kangxi radical 169). Components: 一・門・廾・二・ノ.

Words using 開

開くあくto open (e.g. doors)開けるあけるto open (a door, etc.)開くひらくto open開始かいしstart開会かいかいopening of a meeting開通かいつうopening (of a new road, railway, etc.)開放かいほうopening (a door, window, etc.)展開てんかいdevelopment開催かいさいholding (a conference, exhibition, etc.)開拓かいたくreclamation (e.g. of wasteland)開発かいはつdevelopment打開だかいbreak in the deadlock未開みかいuncivilized切開せっかいincision

Example sentences

ぐいと押すとドアは開いた。

The door yielded to a strong push.

Tatoeba #225720

３人の少年達はその建物の扉を開けました。

The three boys opened the doors of the building.

Tatoeba #235291

先週、私達は舞踏会を開きました。

We gave a ball last week.

Tatoeba #141861

Kanji with the same radical

間関閣門闘閉閲闇

Sources: KANJIDIC2 (EDRDG, CC BY-SA 4.0), KanjiVG (CC BY-SA 3.0), Tatoeba (CC BY 2.0 FR). About the data.