The definite singular form of the noun (the + noun, in English) is used when referring to something previously mentioned or known in the context. Norwegian forms the definite form by adding an ending to the noun:
Hun har en hund og en katt.  Hunden er gammel.  (She has a dog and a cat.  The dog is old.)
Sola står på himmelen.  (The sun is in the sky.)
Gender | 
Indefinite Singular | 
Definite Singular | 
Masculine | 
en gutt (a boy) | gutten (the boy) | 
Feminine | 
ei jente (a girl) | jenta (the girl) | 
Neuter | 
et hus (a house) | huset (the house) | 
Note: Feminine gender. The use of the feminine gender is optional in Norwegian. It is correct to use the indefinite article “en” and the definite article “-en” with all feminine nouns.
It is also acceptable to use the indefinite article “en”, while using the feminine definite ending “-a”.
For example: ei bok → boka or en bok → boken or en bok → boka
					
