noun

• 1A person who or thing which stands in the place of another; specifically (a) a sign, a symbol; (b) a person who represents another person or a wider group; a representative.

• 2 rare A person who or thing which depicts or portrays something.

• 3Law
  A person who makes a representation; (in later use especially) a person who makes a statement on which reliance is placed in the concluding of a contract.