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knapsack

American  
[nap-sak] / ˈnæpˌsæk /

noun

  • knapsacks
    plural
  1. a canvas, nylon, or leather bag for clothes, food, and other supplies, carried on the back by soldiers, hikers, etc.


knapsack British  
/ ˈnæpˌsæk /

noun

  1. a canvas or leather bag carried strapped on the back or shoulder

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of knapsack

1595–1605; < Low German knappsack, equivalent to knapp a bite (of food) + sack sack 1; compare dialectal English knap to snap up, eat greedily

Explanation

A knapsack is a bag with two straps that you wear over your shoulders, leaving your arms free. Don't forget your knapsack when you head out on that hiking trip! You can also call a knapsack a "backpack" or a "rucksack." The word knapsack is thought to be the oldest of these terms, and while "backpack" is more often used today in the U.S., knapsack is more common in Canada. It comes from the German knappen, "to bite," and some experts believe that the name evolved from the fact that soldiers carried food in their knapsacks.

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Vocabulary lists containing knapsack

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

They strapped on a machine that looks a bit like a knapsack and provides a robotic boost for the lower back.

From Science Daily Jan. 31, 2024

The Champagne — worth $2,900 in all — was pulled out of Gonzalez’ knapsack and returned to the guests who had ordered it, according to prosecutors.

From Seattle Times May 15, 2023

Adelekan said the man’s knapsack was blown up in a controlled explosion after the suspect told officers to handle it with care.

From Washington Times May 3, 2023

Many Russians who made the decision to depart did so with little more than a knapsack and whatever cash they could scrape together, leaving jobs, homes and family behind.

From Los Angeles Times Oct. 8, 2022

I nearly spilled out my whole knapsack rushing to get the recorder for Amari.

From "Harbor Me" by Jacqueline Woodson

The blaze was brought under control by 22:30 using jets, beaters and knapsacks.

From BBC Jul. 10, 2025

They tried to stay clean and healthy, stopping as often as they could at laundromats to empty their tattered knapsacks, filled with weeks-old dirty clothing and sleeping bags, into washing machines.

From Los Angeles Times Nov. 19, 2021

Out to test the police response to a peaceful campout in the heart of the beast, this platoon, singing and laughing, had barely opened their knapsacks when the police materialized.

From Salon Oct. 30, 2021

She packed what she could into two knapsacks emblazoned with the Venezuelan flag.

From Washington Post Sep. 6, 2020

By the time I got the money doled out, the boys were dressed and Mrs. Diamant was stuffing empty bottles into knapsacks, because there was no water coming from the pipes.

From "The Light in Hidden Places" by Sharon Cameron

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