backpack
1. [ verb ] hike with a backpack
Synonyms: pack
Examples:

"Every summer they are backpacking in the Rockies"

Related terms: hike sport packing backpacker meat_packer pack
2. [ noun ] a bag carried by a strap on your back or shoulder
Synonyms: knapsack haversack back_pack packsack rucksack
Related terms: bag kitbag
Similar spelling:   backpacker
  backpacking
  back_pack
  backspace
  backspacer