IPA: /ˈnæk.s.pæk/
KK: /ˈnæksˌpæk/
A type of bag that is worn on the back, usually with two shoulder straps, and is used to carry items like clothes, books, or camping gear.
She packed her knapsack with snacks and water for the hike.
Knapsack originates from the German word 'knappsack', where 'knapp' means 'tight' or 'small' and 'sack' means 'bag'. The word refers to a small, tight bag used for carrying items on one's back.
Think of a 'tight bag' ('knapp') that you can carry on your back, which helps you remember that a knapsack is a type of bag.