noun
labor activist; union organizer
Refers to a person who actively works to organize or agitate for workers' rights within the labor movement.
彼は若い頃から労働運動者として活動してきた。
He has been active as a labor activist since he was young.
その労働運動者は新しい組合の結成を呼びかけた。
The labor organizer called for the formation of a new union.
Compound of 労働 (labor) + 運動 (movement) + 者 (person).