noun

A rucksack.

If you don’t attend many conferences you won’t have noticed that it seems to be fashionable to give out rucksacks, backpacks and haversacks as freebies to delegates.

suitcase,case,valise,portmanteau,grip,overnight bag,overnighter,flight bag,travelling bag,Gladstone bag,carpet bag

verb

Travel or hike carrying one’s belongings in a rucksack.

he has backpacked around the world

journey,tour,take a trip,go on a trip,voyage,go on an expedition,go on an excursion,go sightseeing,globetrot,backpack