also: ほんじょうし
noun
normal condition; usual state; one's best form
Often used in the negative 本調子ではない or in expressions like 本調子に戻る to mean not feeling well or returning to normal. Can refer to health, performance, or general condition.
風邪が治ったばかりで、まだ本調子じゃない。
I just got over a cold and am still not back to my usual self.
彼は本調子を取り戻
He regained his form and played well in the match.
noun
keynote; proper key (esp. shamisen)
Music term, especially in traditional shamisen music, referring to the fundamental tuning or key. Also used more broadly for the correct pitch or key in other musical contexts.
三味線の本調子は、初心者が最初に習う調弦です。
The shamisen's honchōshi tuning is the first tuning beginners learn.