Definition from Wiktionary, the free dictionary
- The word is commonly used with a definite article in most parts of central Germany, southern Germany, and Austria: Wo ist die Oma? – “Where is Grandma?” In northern Germany—and generally in writing—no article tends to be used: Wo ist Oma?
- The genitive Omas is used before the modified term, without any article or determiner: Omas Tasche – “Grandma’s bag”. This is chiefly northern German usage; the rest of the language prefers: die Tasche von der Oma (as above). — With an accompanying article or determiner, the genitive takes no ending: die Tasche meiner Oma – “my grandma’s bag”. This, however, is formal usage and Oma is rather rare in formal style; children will say instead: die Tasche von meiner Oma.
Declension of Oma
- Genitive without preceding article (i.e. when used as a proper noun): Omas
- Oma in Duden online