Definition of wall verb from the Oxford Advanced American Dictionary

 

wall

 verb
verb
NAmE//wɔl//
 
[usually passive]wall somethingVerb Forms present simple I / you / we / they wall
 
he / she / it walls
 
past simple walled
 
-ing form walling
 
 
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to surround an area, a town, etc. with a wall or walls a walled city Phrasal Verbswall somethinginwall somethingoffwall somebodyupwall somethingup
See the Oxford Advanced Learner's Dictionary entry: wall