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principal

prin·ci·pal [ prínssəp'l ]


adjective 
Definition:
 
1. primary: first or among the first in importance or rank

2. finance initially invested: relating to the initial amount of money that was invested or borrowed



noun  (plural prin·ci·pals)
Definition:
 
1. school administrator: the head administrator of a school, especially a grade school or high school

2. most important person: the leading or most highly ranked person

3. significant participant: any one of the most significant participants in an event or a situation
the principals in the real-estate transaction

4. finance original amount invested: the initial sum of money invested or borrowed, before interest or other revenue is added, or the remainder of that sum after payments have been made

5. theater performing arts lead performer: a lead actor, singer, or dancer in a theatrical or musical performance

6. music lead musician: the lead musician in a section of an orchestra, or the part played by that musician

7. law represented person: somebody for whom a representative or proxy acts in a legal matter

8. law responsible party: somebody who is directly responsible for something

9. law criminal: the perpetrator of a crime

10. construction main support beam: the main support beam, girder, or truss in a roof, bridge, or other construction

[13th century. Via French< Latin principalis< princip- "somebody who takes first place"]

prin·ci·pal·ly adverb
prin·ci·pal·ship noun

Word Usage
principal or principle?

These two words, though they have the same pronunciation, have different meanings and functions. Principle is a noun only, meaning "a basic assumption," "an ethical standard," and "a way of operating or working," as in the principles of a democratic system;a woman of principle;studied the principles of the internal-combustion engine. By contrast, principal, as a noun, means "a school administrator," "an important participant," "a lead performer," and "a monetary amount invested," as in was sent to the principal's office;a principal in an accounting firm;a principal of $500,000. As an adjective it means "primary": our principal [not principle] reason for an appeal.

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