# backpack

> English word · Noun · IPA /ˈbæk.pæk/ · frequency rank #9,851

## Definitions
1. A knapsack, sometimes mounted on a light frame, but always supported by straps, worn on a person’s back for the purpose of carrying things, especially when hiking, or on a student's back when carrying books.
2. A similarly placed item containing a parachute or other life-support equipment.

## Etymology
From back + pack.

## Easily confused with
- **blackjack** (https://plainspell.com/en/vs/backpack-vs-blackjack)
- **backtrack** (https://plainspell.com/en/vs/backpack-vs-backtrack)
- **backpacker** (https://plainspell.com/en/vs/backpack-vs-backpacker)

## Common misspellings (13)
`abckpack`, `bacckpack`, `backapck`, `backkpack`, `backpacck`, `backpackk`, `backpakc`, `backpcak`, `backppack`, `bacpkack`, `bakcpack`, `bbackpack`, `bcakpack`

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