flagbearer
nounUK /ˈflæɡˌbeə.rər/
US /ˈflæɡˌber.ɚ/
A flagbearer is a person who carries a flag.
The flagbearer led the parade down the street.
OTHER MEANINGS
2. A person who leads or represents a group or cause.
She became the flagbearer of the school's recycling campaign.
3. The leading member of a team or organization.
The veteran player was the flagbearer of the young squad.
4. A symbol or champion of an idea.
He was a flagbearer for kindness in the community.