Definition of plainfield:
(n) :
A city in Union County, New Jersey.
(n) :
A number of places in the United States:
(n) :
A large village in Will County and Kendall County, Illinois.
(n) :
A town in Hendricks County, Indiana, with parts in three separate townships.
(n) :
An unincorporated community, previously a town, in Dodge County, Georgia.
(n) :
A town and village therein, in Windham County, Connecticut.