Verb (5-dan, む, transitive)
1. to challenge to (a fight, game, etc.); to throw down the gauntlet; to contend for
誰が挑んで来ようと結果は同じだ。No matter who challenges me, the result is the same.
Verb (5-dan, む, intransitive)
2. to tackle (e.g. a problem); to attempt; to go after (a prize, record, etc.)
出来れば事前の準備は完璧にしてから挑みたい。If possible, I'd like to have my preparations perfect before I take it on.
3. to pressure (someone) for sex; to make advances to