開

カイ

ひら.く、ひら.き、-びら.き、ひら.ける、あ.く、あ.ける

開, 門, 开, 干, 十

門

open, unfold, unseal

開発(かいはつ): development; exploitation
開催(かいさい): holding a meeting; open an exhibition
開始(かいし): start; commencement; beginning; initiation
開放(かいほう): open; throw open; liberalization; liberalisation
公開(こうかい): open to the public; exhibit
展開(てんかい): (1) development; evolution; unfolding (2) expansion; deployment; building up
開会(かいかい): opening of a meeting
開拓(かいたく): (1) reclamation (of wasteland); cultivation (2) pioneering; pathfinding; trail-blazing
開ける(あける): (1) to open (a door, etc.); to unwrap (e.g. parcel, package) (2) to open (for business, etc.) (3) to empty; to clear out; to make space; to make room (4) to dawn; to grow light (5) to end
開く(あく): (1) to open (e.g. doors) (2) to open (e.g. business, etc.) (3) to be empty (4) to be vacant; to be available; to be free (5) to be open (e.g. neckline, etc.) (6) to have been opened (of one's eyes, mouth, etc.) (7) to come to an end (8) to open (one's eyes, mouth, etc.) (9) to have a hole; to form a gap; to have an interval (between events)
打開(だかい): break in the deadlock
開通(かいつう): opening; open; taking effect; becoming active
未開(みかい): savage land; backward region; uncivilized; uncivilised
開く(ひらく): (1) to open (e.g. a bank-account, festival, etc.) (2) to spread out; to open up (flower bud, umbrella, etc.); to widen (gap, distance, width) (3) to hold; to give (party, conference, etc.)
切開(せっかい): incision; operation; section