[ˈnapsak], (Noun)

Definitions:
- a soldier's or hiker's bag with shoulder straps, carried on the back, and typically made of canvas or other weatherproof material
(e.g: I put my knapsack on the empty seat)


Phrases:

Origin:
early 17th century: from Middle Low German, from Dutch knapzack, probably from German knappen ‘to bite’ + zak ‘sack’