noun
sender, return address
A1
Absender means 'sender' or 'return address'. It's a masculine noun (der Absender), plural Absender, genitive des Absenders. Common in postal or email contexts to indicate who sent something. Declines regularly (dem Absender, die Absender). No special prepositions; typically takes nominative or accusative roles.
Examples
Wegen des fehlenden Absenders konnte die Post die Sendung nicht zustellen, obwohl der Empfänger zu Hause wartete.
Because the sender was missing, the post office could not deliver the package even though the recipient was waiting at home.
Der Absender steht oben links auf dem Brief.
The sender is listed in the top-left of the letter.
Schicken Sie das Paket an den Absender zurück.
Send the package back to the sender.
Details
Mnemonics
Picture the top-left of an envelope labeled 'Absender' where the sender's name goes
Absender ~ 'a sender' (the person who sends)
der — many actor nouns ending in -er are masculine (der Absender)
Notes
Refers to the person or address that sent a package or letter. Plural often identical or 'Absender' -> 'Absender'.