noun
supporting faction; proponents
Refers to a group or faction that supports a proposal, plan, or idea. Often contrasted with 反対派 (opposing faction).
See also: 反対派
その計画には賛成派と反対派がいる。
There are supporters and opponents of the plan.
賛成派の意見を聞いてから決めよう。
Let's decide after hearing the opinions of the supporting faction.