Answer:

unlatch

AnswerCrossword Clue
UNLATCHDebar?
UNLATCHOpen, in a way
UNLATCHOpen, as a screen door
UNLATCHOpen
UNLATCHOpen, as a gate
UNLATCHOpen the door.
UNLATCHLoosen.
UNLATCHFling wide the gates
UNLATCHOpen up