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

 

tern

 noun
noun
BrE BrE//tɜːn//
 
; NAmE NAmE//tɜːrn//
 
Birds
 
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a bird with long pointed wings and a tail with two points that lives near the sea See related entries: Birds Word Origin late 17th cent.: of Scandinavian origin; related to Danish terne and Swedish tärna, both from Old Norse therna.
See the Oxford Advanced American Dictionary entry: tern

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