Dictionary

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

Example: The divers encountered a huge school of mackerel.

A multitude.

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

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

Example: Harvard University is a famous American postsecondary school.

An educational institution providing primary and secondary education, prior to tertiary education (college or university).

At Eton College, a period or session of teaching.

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

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

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

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

Example: Many future prime ministers were schooled in Eton.

To defeat emphatically, to teach an opponent a harsh lesson.

To control, or compose, one's expression.

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