1202440 jmdict A [id=2347427]
開く[ichi1]
ひらく[ichi1]；ヒラく[nokanji]
[1][v5k,vi,vt]
  to open; to undo; to unseal; to unpack
[2][v5k,vi,vt]
  to bloom; to unfold; to spread out
[3][v5k,vi,vt]
  to open (for business, e.g. in the morning)
[4][v5k,vi,vt]
  to be wide (gap, etc.); to widen
[5][v5k,vt]
  to hold (meeting, party, etc.); to give; to open
[6][v5k,vt]
  to found (nation, dynasty, sect, etc.); to open (a new business); to set up; to establish; to start
[7][v5k,vt]
  to open (ports, borders, etc.)
[8][v5k,vt]
  to open (an account)
[9][v5k,vt]
  to open up (new land, path, etc.); to clear; to develop
  [see=2073120・拓く[1]]
[10][v5k,vt][fld=comp]
  to open (a file, etc.)
[11][v5k,vt][fld=math]
  to extract (root); to reduce (equation)
[12][v5k,vt][fld=food]
  [note="as 魚を開く"]
  to cut open (fish)
[13][v5k,vt]
  to change (kanji into hiragana)
[14][v5k,vi]
  to flare (e.g. skirt)
[15][v5k,vi][fld=sports]
  [note="as 体が開く, 肩が開く, etc."]
  to slacken (into a poor posture)
[16][v5k,vi][uk][fld=go]
  [note="usu. ヒラく"]
  to extend
  [see=1989500・ヒラキ[3]]