Noun

1. An educational institution
2. A building where young people receive education
3. The process of being formally educated at a school
4. A body of creative artists or writers or thinkers linked by a similar style or by similar teachers
5. The period of instruction in a school; the time period when school is in session
6. An educational institution's faculty and students
7. A large group of fish

Verb

1. Educate in or as if in a school
2. Teach or refine to be discriminative in taste or judgment
3. Swim in or form a large group of fish