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infidel

noun [C or U]
 
 
/ˈɪn.fɪ.dəl/ US  /-fə.del/ old use disapproving

Definition

(used especially between Christians and Muslims) someone who does not have the same religious beliefs as the person speaking: He lived among infidels/the infidel. infidel armiesBelievers and non-believersSupporters, members and defenders
(Definition of infidel noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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