(transitive) to open (to make something accessible or allow for passage by moving from a shut position) / (transitive) to open (to make accessible to customers or clients) / (transitive, computing) to open (to load into memory for viewing or editing) / (intransitive) to open, get, or answer the door / (reflexive) to open (to become open) / (reflexive) to open up (to), confide (in) (to reveal oneself; share personal information about oneself)

present participle of öffnen