Etymology

Noun

1. A society of learned men united for the advancement of the arts and sciences, and literature, or some particular art or science; as, the French Academy; the American Academy of Arts and Sciences; academies of literature and philology.
2. A school or place of training in which some special art is taught; as, the military academy at West Point; a riding academy; the Academy of Music.
3. An institution for the study of higher learning; a college or a university.
4. Popularly, a school, or seminary of learning, holding a rank between a college and a common school.
5. A place of training; a school.

   • Academies of fanaticism - David Hume

6. A brothel (1811 Dictionary of Vulgar Tongue)