"Principal" as an adjective means main, chief, leading. As a noun, "principal" means a leader, a head, or a sum placed at interest. Examples: 1) The bus was his principal means of transportation. 2) The principal of the school was new.
"Principle" means a rule of action, a moral standard, or a fundamental truth. Example: The principle of the statement was understood by all.
Practice What You've Learned
Exercises are reserved for account holders. Please log in.