preposition
through, by (in passive contexts), via
A1
'durch' is a preposition meaning 'through', 'via', or often 'by' in passive contexts. It always governs the accusative case (no dative option). Use with motion through something (Ich gehe durch den Park) or to indicate agent/means in passive sentences (Das Buch wurde durch Zufall gefunden). Common in spatial and causal uses.
Examples
Reisen Sie durch Europa mit dem Zug.
Travel through Europe by train.
Das Paket wurde durch die Post geliefert.
The package was delivered by the post.
Wir gehen durch den Park.
We're walking through the park.
Details
Mnemonics
Picture walking through a tunnel labeled 'durch'.
Sounds like English 'door-ch' — imagine moving through a door to remember 'through'.
Notes
'durch' is an accusative preposition. It often means 'through' or in passive constructions can be translated as 'by' (agent).