Definition of iPhone™ noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈaɪfəʊn//
; NAmE NAmE//ˈaɪfoʊn//
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a type of mobile/cell phone that also has some of the functions of a computer and on which you can download applications (= copy programs or pieces of software designed to do particular jobs from other computer systems) I use a dictionary app on my iPhone whenever I need to know a word in Spanish.