a person who has had long experience in a particular field, especially military service 老手 (尤指老兵、老战士) a veteran of two world wars. 经历过两次世界大战的老兵。 ■an ex-serviceman or -servicewoman 退伍军人
语源
early 16th cent.: from French vétéran or Latin veteranus, from vetus 'old'