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backpack

[bak-pak] /ˈbækˌpæk/
noun
1.
a pack or knapsack, often of canvas or nylon, to be carried on one's back, sometimes supported on a lightweight metal frame strapped to the body.
2.
a piece of equipment designed to be used while being carried on the back.
verb (used without object)
3.
to go on a hike, using a backpack:
We went backpacking in the Adirondacks.
verb (used with object)
4.
to place or carry in a backpack or on one's back.
Origin
1910-1915
1910-15, Americanism; back1 + pack1
Related forms
backpacker, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for backpacking

backpack

/ˈbækˌpæk/
noun
1.
a rucksack or knapsack
2.
a pack carried on the back of an astronaut, containing oxygen cylinders, essential supplies, etc
verb
3.
(intransitive) to travel about or go hiking with a backpack
4.
(transitive) to transport (food or equipment) by backpack
Derived Forms
backpacker, noun
backpacking, noun
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
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Word Origin and History for backpacking
backpack
1914 as a noun, 1916 as a verb, from back + pack.
Online Etymology Dictionary, © 2010 Douglas Harper
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