Webster's 1828 Dictionary
CAMPAIGNER
n.One who has served in an army several campaigns; an old soldier; a veteran.
Webster's 1913 Dictionary
CAMPAIGNER
CAMPAIGNER Cam *paign "er, n.
Defn: One who has served in an army in several campaigns; an old soldier; a veteran.
New American Oxford Dictionary
campaigner
cam paign er |kamˈpānər kæmˈpeɪnər | ▶noun a person who actively promotes the goals of a cause: human rights campaigners are furious at the government's decision.
Oxford Dictionary
campaigner
cam |paign ¦er |kamˈpeɪnə (r )| ▶noun a person who works in an organized and active way towards a goal: human rights campaigners are furious at the government's decision.
American Oxford Thesaurus
campaigner
campaigner noun she was a dedicated campaigner admired even by her opponents for her hard work and sincerity: activist, fighter, crusader; champion, advocate, promoter.
Oxford Thesaurus
campaigner
campaigner noun crusader, fighter, battler; champion, advocate, promoter, enthusiast; activist, demonstrator, reformer.
Sanseido Wisdom Dictionary
campaigner
cam p á ign er 名詞 C 1 (社会的 政治的 )運動家 .2 従軍者 ; 老練兵 .