- A bag with shoulder straps, carried on the back, and typically made of canvas or other weatherproof material.More example sentences
- The soldiers, dressed in bright green fatigues with knapsacks on their backs, filed through Jean Lesage Airport to meet loved ones who cheered and clapped.
- The second girl reluctantly produced a pack of cigarettes from her knapsack and offered one to the man.
- The thefts have occurred primarily at the DP library, where unattended knapsacks left inside study booths present an attractive opportunity for thieves.
early 17th century: from Middle Low German, from Dutch knapzack, probably from German knappen 'to bite' + zak 'sack'.