supporter
     n 1: a person who backs a politician or a team etc.; "all their
          supporters came out for the game"; "they are friends of
          the library" [syn: {protagonist}, {champion}, {admirer},
           {booster}, {friend}]
     2: someone who supports or champions something [syn: {patron},
        {sponsor}]
     3: a person who contributes to the fulfillment of a need or
        furtherance of an effort or purpose; "my invaluable
        assistant"; "they hired additional help to finish the
        work" [syn: {assistant}, {helper}, {help}]
     4: a band (usually elastic) worn around the leg to hold up a
        stocking (or around the arm to hold up a sleeve) [syn: {garter}]
     5: a support for the genitals worn by men engaging in strenuous
        exercise [syn: {athletic supporter}, {suspensor}, {jockstrap},
         {jock}]
Source: WordNet® 2.0