anbahnen
			aufgehen
			aufklappen
			aufmachen
			aufschlagen
			aufspannen
			auspacken
			beginnen
			entfalten
			eröffnen
			sich öffnen
			öffnen

to be open  to break open  Can you open your bag, please?  to cut open  to flick open  to fly open  to force open  to get open  to get sth open  half-open  to have open  in the open  in the open street  Is the castle open for visitors?  Is the post office open?  to keep open  to leave open  to open an account  Open daily except Mondays.  Open daily from 8 to midnight.  open market  open question

open sandwich  Open the box!  to open up  to open wide  open-air  open-air concert  open-air theater  open-ended  open-handed  open-hearted  open-minded  open-mindedness  to push open  to remain open  to slash open  to slide open  to tear open  to throw open  Until when are you open?  When does the bank open?  wide open  wide-open