oz. Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition abbreviation for ounce a unit of weight. Example Sentence The abbreviation for ounce is oz. More Example Sentences The recipe calls for 8 oz. of cheese. Synonyms ounce; unit; measure Antonyms abbreviation for pound Hear It! Say It! Write It! oz. Switch to cursive Start Share with your friends: