atrancar bedeutet auf Englisch

lock [locked, locking, locks]▼(to fasten with a lock)
verb
[UK: lɒk] [US: ˈlɑːk]

unlock [unlocked, unlocking, unlocks]▼(to undo or open a lock)
verb
[UK: ʌn.ˈlɒk] [US: ʌn.ˈlɑːk]