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Definition of 'principal'


  1. the original amount of a debt on which interest is calculated
  2. the educator who has executive authority for a school; "she sent unruly pupils to see the principal"
       Synonyms: school principal head teacher head
  3. an actor who plays a principal role
       Synonyms: star lead
  4. capital as contrasted with the income derived from it
       Synonyms: corpus principal sum
  5. the major party to a financial transaction at a stock exchange; buys and sells for his own account
       Synonyms: dealer


  1. most important element; "the chief aim of living"; "the main doors were of solid glass"; "the principal rivers of America"; "the principal example"; "policemen were primary targets"
       Synonyms: chief main primary

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