Formal:
* Votre tante (This is the most formal way to say "your aunt".)
Informal:
* Ta tante (This is the informal way to say "your aunt" and is used with close friends or family members.)
Polite:
* Votre/Ta tante (This is a polite way to say "your aunt" and is used when you are unsure of the level of formality.)
Examples:
* Votre tante est très gentille. (Your aunt is very kind.)
* Ta tante a préparé un délicieux gâteau. (Your aunt made a delicious cake.)
* Je suis allé chez votre/ta tante hier. (I went to your aunt's house yesterday.)