English

Definition of lusophone adjective from the Oxford Advanced Learner's Dictionary

 

lusophone

 adjective
adjective
BrE BrE//ˈluːsəfəʊn//
 
; NAmE NAmE//ˈluːsəfoʊn//
 
(linguistics)
 
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speaking Portuguese as the main language Word Origin 1970s: from luso- (representing Lusitania, an ancient Roman province corresponding to modern Portugal) + -phone (see phone).
See the Oxford Advanced American Dictionary entry: lusophone