Principal

/ˈprɪn.sɪ.pəl/

Meaning & Definition

noun

the person with the highest authority in an organization, especially a school.

The principal of the school announced the new policies for the upcoming year.

a sum of money lent or invested, on which interest is paid.

After paying off the interest, the borrower still owed the principal amount of the loan.

a chief or leader in a particular area.

The principal investigator of the study presented the findings at the conference.

adjective

most important; primary.

Her principal concern was the safety of her children.

of or relating to a principal or to a principal sum.

He made a principal payment on the mortgage to reduce his debt.

From Latin 'principalis', meaning 'chief, principal', from 'princeps' meaning 'first, chief, leader'.

principal investigator

The lead researcher or individual responsible for the conduct of a research project.

principal amount

The original sum of money borrowed or invested, before interest.

principal office

The main or primary office of a business or organization.

principality

A state or territory ruled by a prince or princess.

principled

Acting according to moral principles.

prince

A male royal family member, often the son of a king.

The boss or head person in charge.

He's the principal around here, so you need to get his approval.

The primary or main focus.

Our principal aim is to increase sales this quarter.