Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “pioneer”


noun [C]    /ˌpɑɪ·əˈnɪər/
a person who is among the first to study or develop something: He was a pioneer in big-band jazz . US history A pioneer is also a person who is among the first to enter and live in an area , esp . European Americans in the western US: The pioneers made their way across the desert . pioneer    /ˌpɑɪ·əˈnɪər/ verb [T] He pioneered the design of the Internet .
(Definition of pioneer noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of pioneer

Definitions of “pioneer” in other dictionaries

Word of the Day


to pour liquid slowly over something, especially in a thin line or in small drops

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More