a bag, often supported by a metal frame, with shoulder straps that allow it to be carried on someone's back.
a knapsack used by students as a bookbag, or any small bag carried on the back.
a load or piece of equipment carried on a person's back:
a two-tank scuba backpack.
v. [intr.] [usu. as n.] (backpacking)
travel or hike carrying one's belongings in a backpack:
a week's backpacking in the Pyrenees
he has backpacked around the world.
•blackjack • applejack • flapjack
•steeplejack • cheapjack • skipjack
•bootjack • lumberjack • crackerjack
•ack-ack • click-clack • eyeblack
•kulak • shoeblack • bootblack
•yashmak • Tarmac • Cormac
•Potomac • sumac
, Nanak, Pontianak
•knick-knack • almanac • Pasternak
•backpack • woolpack • mudpack
•power pack • Mubarak • backtrack
•half-track • serac • racetrack
•rickrack • gimcrack • tribrach
•wisecrack • sidetrack • soundtrack
•bladderwrack • sandarac • Skagerrak
•Bergerac • Bacharach • bric-à-brac
•tamarack • anorak