English▸ noun a bag with shoulder straps that allow it to be carried on one's back.
▪ a load or piece of equipment carried on a person's back:
a two-tank scuba backpack.
▸ verb [no object] travel or hike carrying one's belongings in a backpack:
he has backpacked around the world
(as noun backpacking) a week's backpacking in the Pyrenees.