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Difference between Principal and Principle

Principal, as an adjective, means foremost. As a noun, it is the head of a school or the amount of money borrowed.

  • Who are the principal developers of the new hardware product?
  • The middle school is getting a new principal for the fall.
  • The mortgage payment includes both principal and interest.

Principle is a noun that refers to law or personal conviction.

  • It works on the principle that warm air rises.
  • It is against our basic principles to make such a statement.