The meaning of PRINCIPAL is most important, consequential, or influential : chief. How to use principal in a sentence.

PRINCIPAL definition: first or highest in rank, importance, value, etc.; chief; foremost. See examples of principal used in a sentence.

PRINCIPAL definition: 1. first in order of importance: 2. the person in charge of a school 3. the person in charge of a…. Learn more.

A principle is broadly “a rule of action or conduct” or “a fundamental doctrine or tenet.” The adjective principal has the general sense “chief, first, foremost.”

2 principal / ˈ prɪnsəpəl/ noun plural principals Britannica Dictionary definition of PRINCIPAL [count] 1 a US : the person in charge of a public school

The word, principal, comes from the Latin principalis "first in importance" and is related to the title of prince. You can see the relation when you think about its meanings — the head of a school, …

Jul 29, 2025 · "Principal" refers to the primary leader, the main financial amount, or the most significant aspect in various contexts. Understanding the term's use and flexibility is important …