1
- a person who is among the first to explore or settle a new country or area拓荒者, 开拓者; 开发者。
1.1
- a person who is among the first to research and develop a new area of knowledge or activity先驱, 先锋; 创始人, 创办者, 倡导者：
a famous pioneer of birth control.
计划生育的著名倡导者。
1.2
- (in the former USSR and other communist countries) a member of a movement for children below the age of sixteen that aimed to foster communist ideals（前苏联等共产党国家的）少年先锋队队员。
1.3
- a member of an infantry group preparing roads or terrain for the main body of troops（先头部队的）工兵。
1.4
- (in Ireland) a member of the Pioneer Total Abstinence Association, a Catholic temperance society（爱尔兰）（天主教禁欲团体）完全禁欲先锋联盟的成员。
with obj.
1- develop or be the first to use or apply (a new method, area of knowledge, or activity)开发, 开拓; 开辟, 开创, 创办：
he pioneered the use of television in lessons.
他开创了在教学中使用电视的做法。
1.1
- open up (a road or terrain) as a pioneer开辟（道路）。
词源
early 16th cent. (as a military term denoting a member of the infantry)： from French pionnier 'foot soldier, pioneer', Old French paonier, from paon, from Latin pedo, pedon- （see PAWN1）.