1428230 jmdict A [id=1965599]
挑む[news2,nf46,spec2]
いどむ[news2,nf46,spec2]
[1][v5m,vt]
  to challenge to (a fight, game, etc.); to throw down the gauntlet; to contend for
[2][v5m,vi]
  to tackle (e.g. a problem); to attempt; to go after (a prize, record, etc.)
[3][v5m,vi]
  to pressure (someone) for sex; to make advances to