Grade 7 grandparent's Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition possessive adjective. belonging to a parent of one's father or mother Example Sentence Jeffrey visited his grandparent's farm. Synonyms grandmother's; grandfather's; grandpa's Antonyms sister's Hear It! Say It! Write It! grandparent's Switch to cursive Start Share with your friends: