Grade 3 backpack Get Printable Handwriting (back-pack) 2 syllables Rhymes Learn It! Spelling Test Definition noun. a bag carried by a strap on your back or shoulderverb. hike with a knapsack Example Sentence I have to wear a backpack to school. Synonyms knapsack; packsack; rucksack Antonyms hat Rhymes Two Syllable Rhymes (1) backpack Share with your friends: