挑戦【ちょうせん】
challenge, defiance, dare, attempt, try
挑発【ちょうはつ】
provocation, stirring up, arousal, excitement, stimulation
挑発的【ちょうはつてき】
provocative, incendiary, inflammatory, suggestive, lascivious, risqué
挑む【いどむ】
to challenge to (a fight, game, etc.), to throw down the gauntlet, to contend for, to tackle (e.g. a problem), to attempt, to go after (a prize, record, etc.), to pressure (someone) for sex, to make advances to