that is Get Printable Handwriting Watch Say It Video Hear It! Say It! Write It! Learn It! Spelling Test Definition preposition. a phrase used to clarify or explain something. Example Sentence She loves animals, that is, dogs and cats. More Example Sentences It is a fact that is clear. Synonyms which means; in other words; namely Antonyms in general; broadly Hear It! Say It! Write It! that is Switch to cursive Start Share with your friends: Watch Say It Video