Nouns are divided into different inflection classes. The Inflection
Dictionary indicates for each noun the inflection class it belongs to.
The categorization of a noun into one or another inflection class is based
on the endings of the genitive singular and the nominative plural.
Therefore, a noun belonging to the class s/e takes the ending s
in the genitive singular and the ending e in the nominative plural.
Traditionally, the terms strong, weak and mixed are used
when describing noun inflection. The endings -en and -n are
called weak. All other endings as well as the absence of an ending are
Weak nouns take the endings -en or -n in both the
singular and the plural. They belong to the en/en-class.
Nouns following the mixed inflection take no endings or strong endings
in the singular and weak endings in the plural. They belong to the (e)s/en-class
or the -/en-class.
Strong nouns take no endings or strong endings in both the singular
and the plural. They belong to one of the other inflection classes