der Fischer

1. 1

   fisher, fisherman — male or of unspecified gender

   • Tom kaufte direkt bei einem der Fischer mehrere Fische.

     Tom bought several fish directly from one of the fishermen.

     Tatoeba · Pfirsichbaeumchen · CC BY 2.0 FR

2. 2

   component part in various compound nouns, e.g. Amazonasfischer (“Amazon kingfisher”), Austernfischer (“oystercatcher”)rare

3. 3

   component part in various compounds for different kinds of fishing boats, e.g. Grundschleppnetzfischer — “trawler”rare

Forms in lighter type are derived by the standard declension rules from the nominative, genitive and plural.