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Indicates location or attachment to a surface or object.
Das Bild hängt an der Wand.
The picture hangs on the wall.
Often used to express physical contact or proximity.
Used to indicate a time or deadline.
Wir treffen uns an Weihnachten.
We meet at Christmas.
Can refer to specific times or events.
Remember that 'an' typically requires the dative case for the noun or pronoun that follows it.
From Old High German 'ana', meaning 'on' or 'at'.
In German, 'an' is a preposition that requires the dative case for nouns and pronouns following it.