illuminates Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. makes something visible by shining light on it. Example Sentence The lamp illuminates the room. More Example Sentences A flashlight illuminates the dark path ahead. Synonyms lights; brightens; clarifies Antonyms darkens; obscures; confuses Hear It! Say It! Write It! illuminates Switch to cursive Start Share with your friends: