Knapsack

Noun

 * 1) 🇺🇸 A case of canvas or leather, for carrying items on the back.

Synonyms

 * rucksack
 * backpack

Verb

 * 1) To go hiking while burdened with a knapsack, usually overnight (or longer.)
 * My sleeping bag fell off my backpack into the water, while we were knapsacking up the mountain.

Synonyms

 * backpack