supporter
//səˈpɔːrtər//
Noun
supporterSingular
supportersPlural
1
A person who approves of and encourages someone or something, especially a public figure, sports team, or cause.
She has been a loyal supporter of the team for over 20 years.
2
A person who provides financial or other assistance to a person, organization, or cause.
The charity relies on supporters to fund its programs.
3
An object or device that holds something up or keeps it in position.
He wore a knee supporter during the game.