Common nouns and proper nouns in singular number. The criterion is a morphosyntactic one and not a semantic one.
| numb=sg | |||
| D e s c r i p t i o n | E x a m p l e s | ||
| Common nouns | das Haus/sg | ||
| die Verwandte/sg | |||
| eine Verwandte/sg | |||
| proper nouns | Peter/sg | ||
| Schweiz/sg | |||