1. a secondary or high school, especially a private one
2. a school or college for special instruction or training in a subject
3. an association or institution for the advancement of art, literature, or science
4. a group of authorities and leaders in a field of scholarship, art, etc., who are often permitted to dictate standards, prescribe methods, and criticize new ideas.
5. the Academy,
.... a. the Platonic school of philosophy or its adherents.
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