principals
noun
Definitions
The money originally invested or loaned, on which basis interest and returns are calculated.
Example: A portion of your mortgage payment goes to reduce the principal, and the rest covers interest.
The chief administrator of a school.
The chief executive and chief academic officer of a university or college.
A legal person that authorizes another (the agent) to act on their behalf; or on whose behalf an agent or gestor in a negotiorum gestio acts.
Example: My principal sells metal shims.