tattletalePronunciation: /ˈtatlteɪl/ USDefinition of tattletale noun a person, especially a child, who reveals secrets or informs on others; a telltale. verb [no object] reveal someone’s secrets; tell tales: she won the approval of the nuns by maintaining loyalty only to Lee and tattletaling on anyone elsetattletale in other Oxford dictionaries Definition of tattletale in the US English dictionary
