school

1. (collective) A group of fish or a group of marine mammals such as porpoises, dolphins, or whales.

   The divers encountered a huge school of mackerel.

2. A multitude.

verb

(of fish) To form into, or travel in a school.

1. An institution dedicated to teaching and learning; an educational institution.

   Harvard University is a famous American postsecondary school.

2. An educational institution providing primary and secondary education, prior to tertiary education (college or university).
3. At Eton College, a period or session of teaching.

   Divinity, history and geography are studied for two schools per week.

4. Within a larger educational institution, an organizational unit, such as a department or institute, which is dedicated to a specific subject area.

   We are enrolled in the same university, but I attend the School of Economics and my brother is in the School of Music.

5. An art movement, a community of artists.

   The Barbizon school of painters were part of an art movement towards Realism in art, which arose in the context of the dominant Romantic Movement of the time.

6. (considered collectively) The followers of a particular doctrine; a particular way of thinking or particular doctrine; a school of thought.

   These economists belong to the monetarist school.

7. The time during which classes are attended or in session in an educational institution.

   I'll see you after school.

8. The room or hall in English universities where the examinations for degrees and honours are held.
9. The canons, precepts, or body of opinion or practice, sanctioned by the authority of a particular class or age.

   He was a gentleman of the old school.

10. An establishment offering specialized instruction, as for driving, cooking, typing, coding, etc.

1. To educate, teach, or train (often, but not necessarily, in a school).

   Many future prime ministers were schooled in Eton.

2. To defeat emphatically, to teach an opponent a harsh lesson.
3. To control, or compose, one's expression.

   She took care to school her expression, not giving away any of her feelings.