There are 2 main definitions of faction in English:

faction1

Line breaks: fac|tion
Pronunciation: /ˈfakʃ(ə)n
 
/

noun

1A small organized dissenting group within a larger one, especially in politics: the left-wing faction of the party
More example sentences
  • The worrying thing is that it's other factions within that same team who are doing the whispering.
  • The country suffered as various factions within the ruling elite lobbied for power.
  • Pedro used these powers when he could not compel political factions or parties to do his bidding.
Synonyms
clique, coterie, caucus, cabal, bloc, camp, group, grouping, side, sector, section, wing, arm, branch, division, contingent, set, ring, lobby;
ginger group, pressure group, splinter group, fringe movement, minority group
1.1 [mass noun] Dissension within an organization: a council increasingly split by faction
More example sentences
  • Do you feel that whole idea of faction within the Union movement is breaking down?
  • Forgetfulness breeds ingratitude; ingratitude breeds faction; and faction leads to civil war.
  • They should instead realize that faction and division are healthy for democracy and necessary for intellectual growth.
Synonyms

Origin

late 15th century (denoting the action of doing or making something): via French from Latin factio(n-), from facere 'do, make'.

Definition of faction in:

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There are 2 main definitions of faction in English:

faction2

Line breaks: fac|tion
Pronunciation: /ˈfakʃ(ə)n
 
/

noun

[mass noun]
A literary and cinematic genre in which real events are used as a basis for a fictional narrative or dramatization: the current vogue for faction seems about to overwhelm narrative history
More example sentences
  • No, I'll tell you several stories that will help explain the difference between fact and fiction and its composite, faction.
  • Here we have a literary form that attempts to bridge the gap between fact and fiction, or faction, something like historical fiction.

Origin

1960s: blend of fact and fiction.

Definition of faction in: