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Learn to pronounce prin·ci·pal

/ˈprinsəp(ə)l/
adjective
  1. first in order of importance; main.
    "the country's principal cities"
    synonyms: main, chief, primary, leading, foremost, first, most important, predominant, dominant, (most) prominent, key, crucial, vital, essential, basic, staple, critical, pivotal, salient, prime, central, focal, premier, paramount, major, ruling, master, supreme, overriding, cardinal, capital, preeminent, ultimate, uppermost, highest, utmost, top, topmost, arch-, number-one
  2. (of money) denoting an original sum invested or lent.
    "the principal amount of your investment"

noun
  1. the person with the highest authority or most important position in an organization, institution, or group.
    "a design consultancy whose principal is based in San Francisco"
    synonyms: boss, chief, chief executive (officer), CEO, chairman, chairwoman, managing director, MD, president, director, manager, employer, head, leader, ruler, controller, head honcho, gaffer, governor, guv'nor
  2. a sum of money lent or invested, on which interest is paid.
    "the winners are paid from the interest without even touching the principal"
    synonyms: capital sum, capital, capital funds, working capital, financial resources, money, debt, loan
  3. a person for whom another acts as an agent or representative.
    "stockbrokers in Tokyo act as agents rather than as principals"
  4. the person directly responsible for a crime.
  5. a main rafter supporting purlins.
  6. an organ stop sounding a main register of open flue pipes typically an octave above the diapason.
    "all the principals are on one manual"

People also ask
7 days ago · The meaning of PRINCIPAL is most important, consequential, or influential : chief. How to use principal in a sentence. Principle vs.
first or highest in rank, importance, value, etc.; chief; foremost: The principal problem is a lack of money.
a person who has legal responsibility for what a business or organization does: I later became a principal at an investment banking firm.
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/ˈprɪnsɪpəl/ · adjective. most important element · noun. the educator who has executive authority for a school · noun. the major party to a financial ...
principal in British English · 1. first in importance, rank, value, etc; chief · 2. denoting or relating to capital or property as opposed to interest, etc · 3.
One who holds a position of presiding rank, especially the head of an elementary school, middle school, or high school.
PRINCIPAL meaning: 1. main, or most important: 2. the person in charge of a school or college: . Learn more.
​the person who has the most important part in a play, an opera, etc. The performance ...