教育JLPT-N4
open, unfold
to openけるto open
ひら
ひらto open an event
かい
かいstartかいかいopening of a meetingかいつうopeningかいほうopenてんかいdevelopかいさいholding a meetingかいたくreclamation (of wasteland)かいはつdevelopmentこうかいpresenting to the publicせっかいclearing (land)かいbreak in the deadlockかいsavage land