A noun is a word that names a thing. Like all words in Pandunia, nouns are invariant. So the same form is used in singular and plural, in definite and indefinite, etc.
– a stone, stones, the stone or the stones
meze – a table, tables, the table or the tables
kurse – a chair, chairs, the chair or the chairs
suy – water
Number and definiteness are often known because they were specified earlier in the discussion or because they are general knowledge. For example, normally the word sol refers to the sun and lun refers to the moon, our only sun and moon.
Nouns are unaffected by number, i.e. nouns have the same form in singular and plural. Number can be mentioned with number words when it is needed.
– a chair or chairs
un kurse – one chair
duli kurse – two chairs
tini kurse – three chairs
poli kurse – many chairs; chairs
Pandunia doesn't have grammatical gender (i.e. masculine, feminine and/or neuter categories).
Some words have natural gender. For example fem (woman) is feminine and man (man) is masculine.