tattles Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to tell someone about another person's wrong actions. Example Sentence My little sister always tattles on me when I sneak cookies from the jar. More Example Sentences Tattles can cause trouble between friends. Synonyms snitches; informs; reveals Antonyms conceals; hides Hear It! Say It! Write It! tattles Switch to cursive Start Share with your friends: