Rivalry; factiousness; internal dissension. Obsolete.

The taking of another's part or side; the action of taking sides in a dispute or contest; an instance of this. Obsolete.

Dissension within a political party or other organization, especially when resulting in self-interested or turbulent strife or intrigue; conflict or…

The quality or state of being factious; a disposition to form factions, or to act in the interest of a faction.

The action of taking sides in a conflict or debate; one's allegiance or loyalty in a dispute… Without construction. Now rare.

the action or an act of taking sides in a conflict or debate; = siding, n. 2.

The action of taking a particular side. Obsolete. rare.

An act of dividing into parties or factions. Obsolete. rare.

A feeling of support and solidarity for the group, faction, or political party of which a person is a member or adherent.

The policy or system of taking sides on public questions; attachment to or support for a particular party; party feeling or spirit; partisanship…

(a) partisanship; spec. the feeling of solidarity with and support for one's political party; (b) a feeling or atmosphere of festivity.

Excessive attachment to a particular (esp. political) party; party spirit. Also: the political system by which elections, debates, etc., are…

The condition or behaviour of a partisan; devoted or zealous support for a cause, party, or person; lack of impartiality.

= factionalism, n.

Partisanship; partisan spirit.

The state or condition of being factional or split into factions; a condition characterized by dissent or faction; tendency to factional differences.

Partisanship; a partisan act or feeling.