noun
left-wing party; party of the left
Refers to a political party with left-wing ideology. Often used in political contexts.
その左翼党は選挙で議席を増やした。
That left-wing party increased its seats in the election.
彼は左翼党の党首として知られている。
He is known as the leader of a left-wing party.
左派 is a broader term for 'left wing' or 'leftist faction', not necessarily a formal party.
Compound of 左翼 (left wing) and 党 (party). The term follows standard Sino-Japanese word formation.