開始【かいし】
start, commencement, beginning, initiation
開く【あく】
to open (e.g. doors), to open (e.g. business, etc.), to be empty, to be vacant, to be available, to be free, to be open (e.g. neckline, etc.), to have been opened (of one's eyes, mouth, etc.), to come to an end, to open (one's eyes, mouth, etc.), to have a hole, to form a gap, to have an interval (between events)
開く【ひらく】
to open, to undo, to unseal, to unpack, to bloom, to unfold, to spread out, to open (for business, e.g. in the morning), to be wide (gap, etc.), to widen, to hold (meeting, party, etc.), to give, to open, to found (nation, dynasty, sect, etc.), to open (a new business), to set up, to establish, to start, to open (ports, borders, etc.), to open (an account), to open up (new land, path, etc.), to clear, to develop, to open (a file, etc.), to extract (root), to reduce (equation), to cut open (fish), to change (kanji into hiragana), to flare (e.g. skirt), to slacken (into a poor posture)
開ける【ひらける】
to open out (of a view, scenery, etc.), to spread out, to become clear (of a road, visibility, etc.), to open up, to improve (of luck, prospects, etc.), to get better, to develop (of a town, civilization, etc.), to become civilized, to modernize, to grow, to advance (of knowledge, ideas, etc.), to be sensible, to be understanding, to be enlightened, to open (of a new road, railway, etc.), to be opened to traffic, to become populous, to become densely built, to become bustling
開ける【あける】
to open (a door, etc.), to unwrap (e.g. parcel, package), to unlock, to open (for business, etc.), to empty, to remove, to make space, to make room, to move out, to clear out, to be away from (e.g. one's house), to leave (temporarily), to dawn, to grow light, to end (of a period, season), to begin (of the New Year), to leave (one's schedule) open, to make time (for), to make (a hole), to open up (a hole)
開発【かいはつ】
development, exploitation (of resources)
開ける【はだける】
to open (e.g. one's robe), to bare (e.g. one's chest), to expose, to open up (of clothing), to be exposed, to open wide (one's legs, eyes, mouth, etc.), to stretch
展開【てんかい】
development, evolution, progression, unfolding, (plot) twist, expansion, spreading out, extending, deployment, building up, expansion (of an algebraic expression), development (of a three-dimensional shape), extraction (of compressed data), decompression, unpacking
公開【こうかい】
opening to the public, making available to the public, exhibiting, unveiling, release (of a film, information, etc.), disclosure, publication
再開【さいかい】
reopening, resumption, restarting
開閉【かいへい】
opening and shutting, opening and closing
開催【かいさい】
holding (a conference, exhibition, etc.), opening, hosting (e.g. the Olympics)
開店【かいてん】
opening a new shop, opening a shop (for the day)
全開【ぜんかい】
opening fully, full throttle, full power
開放【かいほう】
opening (a door, window, etc.), leaving open, opening up (e.g. to the public), allowing (public) access
開幕【かいまく】
raising the curtain, opening (of an event), start, beginning
開会【かいかい】
opening of a meeting
開設【かいせつ】
establishment, opening, setting up, inauguration
開拓【かいたく】
reclamation (e.g. of wasteland), cultivation, development, pioneering, opening up (e.g. of a new market), breaking new ground, trailblazing
未開【みかい】
uncivilized, uncivilised, primitive, savage, undeveloped (land), unexplored (territory, field, etc.), unbloomed (flower)
