2. A party, in political society, combined or acting in union, in opposition to the government, or state; usually applied to a minority, but it may be applied to a majority; a combination or clique of partisans of any kind, acting for their own interests, especially if greedy, clamorous, and reckless of the common good.
3. Tumult; discord; dissension. They remained at Newbury in great faction among themselves. (Clarendon)
Synonym: combination, clique, junto. See Cabal.