noun
faction
FAK-shun/ˈfækʃn/
A group within a larger organization whose views differ from those of other members.
A small faction within the union opposes the new contract.

Etymology
The pieces literally express “a making or doing,” but the Latin noun also named a chariot-racing team. Its later use for a political party connects it to today's subgroup competing with others.
In context
organizes uh what comes to be known as the bucktails also the albany regency um to create sort of a rival faction in new york
More examples
- The party's reform faction wants younger leaders.
- Two rival factions disagree over how to spend the club's money.
- She belongs to a faction that favors stricter membership rules.
Forms
faction · factions
factional adjective — Relating to divisions within a group.
factionalism noun — Conflict between groups within an organization.