Aunt, n.

(ănt), n. [O. Fr. ante, Pr. amda, Lat. amita; N. Fr. tante, with the addition of a t at the beginning.]

1. The sister of one's father or mother; — correlative to nephew or niece. Pope.
2. Any old or bad woman. [Obs.] Shak.
3. A bawd, or a prostitute. [Obs.] Shak.

Every one knows what aunt stands for in the last translation. Middleton.