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

 

keypal

 noun
noun
BrE BrE//ˈkiːpæl//
 
; NAmE NAmE//ˈkiːpæl//
 
(informal)
 
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a person that you regularly send emails to, often somebody you have never met Word Origin 1990s: from key + pal, by analogy with pen pal.