# knapsack

> English word · Noun · IPA /ˈnæpsæk/ · frequency rank #58,797

## Definitions
1. A case of canvas or leather, for carrying items on the back.
2. A set of values from which a subset is chosen.

## Etymology
From Low German knapzak or Dutch knapzak (older form cnapsack), from Middle Dutch cnappen (“to bite with teeth”), ultimately from knappen (“to eat, crack”), of imitative origin, + sack. German Knappsack is from Dutch.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/knapsack