What does 挑戦 mean?
挑戦 is a Japanese noun meaning “challenge, defiance” in English. It is written as 挑戦 in kanji, ちょうせん in hiragana, and chousen in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
スカイダイビングに挑戦したいんです。
I'd like to try out skydiving.