solidifies Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. makes or becomes solid or firm. Example Sentence The metal solidifies when it cools. More Example Sentences The glue solidifies when it dries. Synonyms hardens; strengthens; freezes Antonyms melts; liquefies; softens Hear It! Say It! Write It! solidifies Switch to cursive Start Share with your friends: