oysters Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. a type of shellfish that lives in water. they can be eaten raw or cooked. Example Sentence The pearls in her necklace were found in oysters. More Example Sentences Oysters can be found in oceans and bays. Synonyms shellfish; mollusk; seafood Antonyms raccoon Hear It! Say It! Write It! oysters Switch to cursive Start Share with your friends: