noun (n)

• a person who backs a politician or a team etc.(noun.person)

  Example:
  All their supporters came out for the game.
  

  Synonym:
  admirer, booster, champion, friend, protagonist
  

  source: wordnet30
• someone who supports or champions something(noun.person)

  Synonym:
  patron, sponsor
  

  source: wordnet30
• a person who contributes to the fulfillment of a need or furtherance of an effort or purpose(noun.person)

  Synonym:
  assistant, help, helper
  

  source: wordnet30
• a band (usually elastic) worn around the leg to hold up a stocking (or around the arm to hold up a sleeve)(noun.artifact)

  Synonym:
  garter
  

  source: wordnet30
• a support for the genitals worn by men engaging in strenuous exercise(noun.artifact)

  Synonym:
  athletic supporter, jock, jockstrap, suspensor
  

  source: wordnet30
• One who, or that which, supports; as, oxygen is a supporter of life.(noun)

  source: webster1913