Noun - Deutsch

All German nouns belong to one of three grammatical genders: masculine, feminine, or neuter. For example: Peter [Peter], Koffer [suitcase], Firma [company], Buch [book] are also nouns. Nouns in German are easy to identify because they are all capitalized.

Examples in German:

Our son is driving to the city by car.
Unser Sohn fنhrt mit dem Auto in die Stadt.

Sohn (son), Auto (car), Stadt (city) are nouns.

NOUNS TYPES:

Proper nouns are names of specific people, things, locations, or ideas:

Karl =Karl
the United Nations = die Vereinten Nationen
Communism = Kommunismus

Common nouns are names of general 'categories' of people, objects, places, or concepts:

boy = Junge
organisation = Organisation

Countable nouns are names of anything that can be counted:

one suitcase = ein Koffer
three books = drei Bücher
many thanks = vielen Dank

Uncountable nouns name what cannot be counted:

wine = Wein
air = Luft

The gender is most easily identified by the noun's definite article in the nominative case: der (masculine), die (feminine and plural), and das (neuter).

Masculine
the man - der Mann
the table - der Tisch
the rock - der Stein

Femenine
the woman - die Frau
the sun - die Sonne
the question - die Frage

Neuter
the child - das Kind
the fire - das Feuer
the book - das Buch

Source : anonymous