conflagrate Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to set on fire; to cause to burn. Example Sentence The house began to conflagrate after the lightning struck. More Example Sentences He did not mean to conflagrate the wood. Synonyms ignite; kindle; burn Antonyms extinguish; quench Hear It! Say It! Write It! conflagrate Switch to cursive Start Share with your friends: