intensifies Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. makes something stronger or more extreme. Example Sentence The heat intensifies as the day progresses. More Example Sentences Her excitement intensifies before the big game. Synonyms boosts; increases; strengthens Antonyms decreases; lessens; weakens Hear It! Say It! Write It! intensifies Switch to cursive Start Share with your friends: