The meaning of KNAPSACK is a bag (as of canvas or nylon) strapped on the back and used for carrying supplies or personal belongings : backpack. How to use knapsack in a sentence.

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KNAPSACK definition: a canvas, nylon, or leather bag for clothes, food, and other supplies, carried on the back by soldiers, hikers, etc. See examples of knapsack used in a sentence.

Nov 3, 2021 · Knapsacks are bags with two straps that you can wear over your shoulders. They’re typically made of incredibly durable material and are commonly used by the military or for hiking.

/ ˈnæpˌsæk / Add to word list a small bag with straps that can hold it against a person’s back, leaving the arms free (Definition of knapsack from the Cambridge Academic Content Dictionary © Cambridge …

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Feb 21, 2026 · Noun knapsack (plural knapsacks) (chiefly US, dated or archaic in UK) A case of canvas or leather, for carrying items on the back.