backpack
Translation
rucksack, backpack
Examples
She put her books in her backpack.
She put her books in her rucksack.
He travels with just a backpack.
He travels with just a rucksack.
Grammar Patterns
a backpack for ((sth.)) a bag for (sth.) I need a new backpack for school.
Similar Words
Synonyms: rucksack, knapsack
Etymology
A compound word from 'back' and 'pack'. Literally a pack carried on one's back.
Memory Tips
The word itself is a description: it's a 'pack' you carry on your 'back'.