A person who supports or approves of a public figure, political party, team, policy, etc. The candidate's supporters gathered at the rally to show their enthusiasm.
A person who actively backs, promotes, or advocates for a cause or organization. She is a strong supporter of environmental conservation efforts.
A device, structural part, or object that holds something up or provides support. The shelf needed a metal supporter underneath to keep it level.
In heraldry, a figure or animal placed on either side of a shield as if supporting it. The coat of arms is flanked by two lions as supporters.