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

 

Oceania

 noun
noun
BrE BrE//ˌəʊsiˈɑːniə//
 
, BrE//ˌəʊʃiˈɑːniə//
 
; NAmE NAmE//ˌoʊʃiˈɑːniə//
 
[uncountable]
 
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a large region of the world consisting of the Pacific islands and the seas around them Word Originmodern Latin, from French Océanie.