Aunt
The answer is "Tante".
That's German for "aunt". Note that in German it is spelled "Tante" - with an uppercase "T" - since it is a noun.
How old is your Auntie? Wie = How Alt = Old Ist = Is Deine = Your Tante = Auntie
Tante is the translation of Aunty to German.
eine Tante = Auntie meine Tante = My Auntie
If you mean aunt as in 'the wife of an uncle', then in German it would be "Tante". Remember that all German nouns are always spelt with a capital letter!
tante
Tante
The German word for aunt is (die) Tante, the plural is formed by adding an 'n' to make (die) Tanten.
Die is "the" in the feminine form. If you were saying The aunt, you would say- Die Tante
How is your aunt called? or What is your aunt's name? are equivalents for "comment s'appelle ta tante ?".
aunt = tante