(pioneers, pioneering, pioneered)
1.
Someone who is referred to as a pioneer in a particular area of activity is one of the first people to be involved in it and develop it.
...one of the leading pioneers of British photo journalism...
N-COUNT: oft N of/in n, N n
2.
Someone who pioneers a new activity, invention, or process is one of the first people to do it.
...Professor Alec Jeffreys, who invented and pioneered DNA tests...
...the folk-tale writing style pioneered by Gabriel Garcia Marquez.
VERB: V n, V-ed
3.
Pioneers are people who leave their own country or the place where they were living, and go and live in a place that has not been lived in before.
...abandoned settlements of early European pioneers.
N-COUNT