Definition of caboose noun from the Oxford Advanced Learner's Dictionary

 

caboose

 noun
noun
BrE BrE//kəˈbuːs//
 
; NAmE NAmE//kəˈbuːs//
 
(North American English)
 
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the part at the back of a train where the person who is in charge of the train rides Word Origin mid 18th cent.: from Dutch kabuis, kombuis, of unknown origin.
See the Oxford Advanced American Dictionary entry: caboose