activates Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to make something start working. Example Sentence The remote control activates the television. More Example Sentences She activates the game by pressing start. Synonyms starts; triggers; initiates Antonyms deactivates; stops; halts Hear It! Say It! Write It! activates Switch to cursive Start Share with your friends: