Meaning of BACKPACK in English

BACKPACK

I. ˈbak-ˌpak noun

Date: 1914

1.

a. : a load carried on the back

b. : a camping pack (as of canvas or nylon) supported by a usually aluminum frame and carried on the back

c. : knapsack

2. : a piece of equipment designed for use while being carried on the back

II. verb

Date: 1927

transitive verb

: to carry (food or equipment) on the back especially in hiking

intransitive verb

: to hike with a backpack

• back·pack·er noun

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.