noun
main performer; star performer; headliner
Refers to the top-billed performer in a show, concert, or event; the main attraction.
今夜のコンサートの真打ちは、あの有名な歌手だ。
The headliner for tonight's concert is that famous singer.
彼はこのフェスの真打ちとして紹介された。
He was introduced as the star performer of this festival.
noun
highest-ranked rakugo storyteller
Specifically in the world of rakugo (traditional comic storytelling), the top rank a performer can achieve.
彼は長年の修行の末、真打ちに昇進した。
After years of training, he was promoted to the highest rank of rakugo storyteller.
Literally 'true strike' or 'real hit', from 真 (true) and 打ち (striking). Originally referred to the final, decisive performance in a variety show, later extended to the top performer.