Compounds of 開く

• 開く
  (v5k,vi) (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
  (v5k,vt) (8) to open (one's eyes, mouth, etc.)
  (v5k,vi) (9) to have a hole
  to form a gap
  to have an interval (between events)
  (P)
• 開く
  (v5k,vt) (1) to open (e.g. a bank-account, festival, etc.)
  (v5k,vi) (2) to spread out
  to open up (flower bud, umbrella, etc.)
  to widen (gap, distance, width)
  (3) to hold
  to give (party, conference, etc.)
  (P)
• 花開く
  (n) to blossom
  to flower
  to bloom
• 見開く
  (v5k,vt) to open one's eyes
• 言開く
  (v5k,vt) to justify
  to explain
  to vindicate
• 切開く
  (v5k,vt) to clear (land)
  to open up
  to cut through
• おっ開く
  (v5k) (1) to do something in public
  (2) to open
• 押し開く
  (v5k) to push open
• 言い開く
  (v5k,vt) to justify
  to explain
  to vindicate
• 口を開く
  (exp,v5k) to open one's mouth (to talk)
• 緒を開く
  (exp) to find a clue
  to make a beginning
• 切り開く
  (v5k,vt) to clear (land)
  to open up
  to cut through
• 店を開く
  (exp) to open a business
• 眉を開く
  (exp) (id) to feel relieved
  to forget about one's troubles
  to settle into peace of mind
• 幕が開く
  (exp,v5k) to start an act (of a play)
  to have curtains open
  to have an (event, period of history, etc.) start
• 距離を開く
  (exp) to open the distance
• 糸口を開く
  (exp) to find a clue
  to make a beginning
• 時間が開く
  (exp,v5k) to have time free
  to have time to spare
• 愁眉を開く
  (exp) to feel relieved
• 戦端を開く
  (exp) to open hostilities
  to take up arms (against)
• 門戸を開く
  (exp,v5k) to (metaphorically) open the door (to)
• 道を切り開く
  (exp) to open a path