principal

US /ˈprɪn.sə.pəl/
UK /ˈprɪn.sə.pəl/
"principal" picture
1.

the head of a school or college

:
•
The principal announced the new school policy.
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She met with the principal to discuss her child's progress.
:
headmasterheadmistressdeanrector
2.

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

:
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The monthly payment covers both principal and interest.
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It's important to pay down the principal on your loan.
:
capitalcorpusoriginal amount
3.

a leading or most important actor, singer, or dancer in a play or opera or ballet

:
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She played the principal role in the ballet.
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The tenor was the principal singer in the opera.
:
leadstarprotagonistmain performer
1.

first in order of importance; main

:
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The principal reason for his success was hard work.
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Our principal concern is the safety of our employees.
:
mainchiefprimaryleadingforemostparamountprimekeydominantmajor
:
principal parts