insulates Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to protect something from heat or sound. Example Sentence The electrician insulates the wires to protect them. More Example Sentences He insulates pipes to prevent freezing. Synonyms protects; shields; isolates Antonyms exposes; reveals; uncovers Hear It! Say It! Write It! insulates Switch to cursive Start Share with your friends: