挑戦ちょうせん Common Noun Irregular Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verb challenge;defiance;dare;attempt;try スカイダイビングに挑戦したいんです。 I'd like to try out skydiving.
挑戦権ちょうせんけん Noun English jmdict 1 noun (common) (futsuumeishi) right to challenge;right to make a challenge