jam-packed Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to fill or pack as tightly or fully as possible;adjective. tightly packed; crammed Example Sentence It was a jam-packed theater. Spelled with a hyphen. Synonyms pack tightly; fill fully; pack fully; crammed Antonyms empty Hear It! Say It! Write It! jam-packed Switch to cursive Start Share with your friends:
