verschließen

Verb

 * 1)  to close; to shut; to lock
 * 2)  to lock (something) up

Usage notes

 * Before the 1996 German spelling reform, the past tense was conjugated as verschloß, verschlossest/verschloßt, verschloß, verschlossen, verschloßt, verschlossen, while the reformed spellings use verschloss- consistently.