Plurals

Indefinite plurals are usually formed by adding -e or -er to the singular, although some nouns remain unchanged and some others are irregular. In the definite article plural, nouns take an -(e)ne or -(er)ne ending. Here are some examples:

singular

plural

indefinite

definite

indefinite

definite

common

en bil		a car
en skole		a school
en stol		a stool
en mus		a mouse
en chip		a chip

bilen		the car
skolen		the school
stolen		the stool
musen		the mouse
chippen		the chip

biler		cars
skoler		schools
stole		stools
mus		mice
chips		chips

bilerne		the cars
skolerne		the schools
stolene		the stools
musene		the mice
chipsene		the chips

neuter

et hotel		a hotel
et hus		a house
et år		a year

hotellet		the hotel
huset		the house
året		the year

hoteller		hotels
huse		houses
år		years

hotellerne		the hotels
husene		the houses
årene		the years

Some rules-of-thumb for remembering which plural form to use:

-er is the most common. In particular, multi-syllable nouns usually take the -er ending.
Nouns which take the -e ending are usually single-syllable n-words.
Nouns which are unchanged in the plural are almost always short single-syllable t-words.

As in English, there are also irregular plurals, for example: en bog (a book), bøger (books).

Danish for English Speakers