Definition of Portakabin™ noun from the Oxford Advanced Learner's Dictionary

 

Portakabin™

 noun
noun
BrE BrE//ˈpɔːtəkæbɪn//
 
; NAmE NAmE//ˈpɔːrtəkæbɪn//
 
(British English) Buildings
 
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a small building that can be moved from place to place by a vehicle, designed to be used as a temporary office, etc. See related entries: Buildings Word Origin 1960s: from porta- (from portable) and an alteration of cabin.