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adjectivegeneral usevery common/pɾĩˈsipau/prin·ci·pal
Definitions
31
Most important or primary in a given context.
Usage examples
“The main topic of the meeting was security.”
“She is the main author of the project.”
2
Referring to the head of a school or institution.
Usage examples
“The principal of the school gave a speech.”
“She is the principal of a public school.”
3
Referring to the capital of a loan or investment.
Usage examples
“The principal of the loan must be paid in five years.”
“The principal of the investment is guaranteed.”