Definitions:

1. A clique, often secret, that seeks power usually through intrigue. NOUN
   • A faction of the council opposed the construction project, citing environmental concerns.
2. A small organized group within a larger group, that hold different opinions or interests and may work to promote its own agenda, often creating division or conflict. NOUN
   • The ruling party split into factions over the new economic policy.
3. A state of conflict within an organization. NOUN
   • The two factions were unable to reach a compromise.

Synonyms:

• cabal
• clique
• coalition
• division
• group
• sect
• subgroup