Principal

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Principal may refer to:

[edit] Education

The head of an educational institution:

[edit] Law

  • Principal (commercial law), a person who authorises an agent to act to create a legal relationship with a third party
  • Principal (criminal law), one (or more) primary actor(s) in a criminal offense for which other actors may be criminally liable as accomplices, accessories or conspirators

[edit] Other uses

  • Principal sum, the original amount of a debt or investment on which interest is calculated
  • Organ stop on a pipe organ
  • A musician in an orchestra who either plays the first part (wind instruments), or who sits in the first chair and leads a section (of string instruments) in playing the same part
  • A performer in an opera or musical who takes a more or less prominent part in the action, and sings solo or in small ensembles
  • Principal ideal, in ring theory in mathematics, an ideal with a single generator, and the related concept of principal ideal domains
  • The Cauchy Principal Value of an integral, in mathematics, a way of assigning a finite value to improper integrals that seem to diverge
  • Principal (Civil Service) or Principal Officer, a senior management grade (now grade 7) in the British Civil Service and the Irish Civil Service
  • A security principal is an entity that can be positively identified and verified via a technique known as Authentication
  • Principal, Cape Verde, a village
  • Principal Financial Group, a life insurance company traded on the NYSE