JLPT N5 · Verb

開く (aku)

開く (あく, aku) is a Japanese verb meaning “to open (e.g. doors)”. It appears in JLPT N5 vocabulary lists and is marked as a common word in JMdict.

Reading: あく
Romaji: aku
Word class: Godan verb (う-verb) ending in く
Level: JLPT N5 (unofficial)

Meaning

to open (e.g. doors) · godan verb, intransitive · esp. 開く
to open (e.g. business, etc.) · godan verb, intransitive · esp. 開く
to be empty · godan verb, intransitive · esp. 空く
to be vacant; to be available; to be free · godan verb, intransitive · esp. 空く
to be open (e.g. neckline, etc.) · godan verb, intransitive · esp. 明く

Example sentences

ぐいと押すとドアは開いた。

The door yielded to a strong push.

Tatoeba #225720

１塁があいていたので打者を歩かせた。

With first base open, he walked the batter.

Tatoeba #235642

放課後は空いてますか？

Are you free after school?

Tatoeba #82709

Sentences from the Tatoeba project, linked to this word in JMdict.

Conjugation of 開く

Godan verb (う-verb) ending in く. Plain and polite forms below; try any other word in the Japanese verb conjugator.

Form	Japanese	Reading
Dictionary	開く	あく aku
Polite (~masu)	開きます	あきます akimasu
Negative	開かない	あかない akanai
Polite negative	開きません	あきません akimasen
Past	開いた	あいた aita
Polite past	開きました	あきました akimashita
Negative past	開かなかった	あかなかった akanakatta
Te-form	開いて	あいて aite
Potential	開ける	あける akeru
Passive	開かれる	あかれる akareru
Causative	開かせる	あかせる akaseru
Volitional	開こう	あこう akou
Imperative	開け	あけ ake
Conditional (~ba)	開けば	あけば akeba

Kanji in 開く

開

open, unfold, unsealカイ・ひら.く・ひら.き · 12 strokes

Related words

Other vocabulary sharing a kanji with 開く.

開けるあけるto open (a door, etc.)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

Source: JMdict entry 1586270 (EDRDG, CC BY-SA 4.0). Level: unofficial JLPT list – how levels are assigned.