lyceum

noun3

1. •
   A school, especially European, at a stage between elementary school and college, a lycée.

   • We burst out laughing. She told me that one of her teachers at the "lyceum" used to say that whenever any of the students got up to anything. — 2021
2. •
   (historical) A public hall designed for lectures, readings, or concerts.

   • At a lyceum, not long since, I felt that the lecturer had chosen a theme too foreign to himself, and so failed to interest me as much as he might have done. — 1854
3. •
   An association for literary improvement.