backpack
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backpack
A bag with shoulder straps that is carried on the back and used to transport objects, especially when hiking, traveling, or going to school.
Für die Bergtour packte sie Wasser, Proviant und eine Regenjacke in ihren Rucksack.
For the mountain hike, she packed water, provisions, and a rain jacket in her backpack.
'Rucksack' (backpack) is a compound word made up of 'Rücken' (back) and 'Sack' (sack/bag). So it is literally a 'bag for the back,' which describes its function perfectly.
Mein Rücken tut weh, weil der Rucksack so schwer ist.
My back hurts because the backpack is so heavy.
Common verbs are 'einen Rucksack packen' (to pack a backpack), 'tragen' (to carry), 'aufsetzen' (to put on, onto your back), and 'absetzen' (to take off, from your back).
Bevor wir losgingen, setzte sie schnell ihren Rucksack auf.
Before we set off, she quickly put on her backpack.
When you put something into the backpack, you use the preposition 'in' with the accusative. The action of carrying is often described with 'auf dem Rücken' (on the back).
Ich habe meine Wasserflasche in den Rucksack gesteckt.
I put my water bottle in the backpack.
bag / pocket
'die Tasche' and 'der Rucksack' are both containers used to transport things. 'Tasche' is the more general term and can be carried in your hand, over your shoulder, or on your arm. 'Rucksack' is a specific kind of bag with straps that you carry on your back. The words can be confused because a backpack is also a kind of bag. If the way it is carried is important, you say 'Rucksack'. If you are speaking generally about a portable container, 'Tasche' is often enough.
Für die Wanderung am nächsten Tag packt Tom den Rucksack schon am Abend.
For the hike the next day, Tom packs the backpack the evening before.
Für den Einkauf im Supermarkt nimmst du morgen am besten eine große Tasche mit.
For shopping at the supermarket tomorrow, it’s best to take a large bag with you.