Question

what do you mean by plains​

Answer 1

Plain things are simple, unadorned, and even a little boring. Being a plain talker means you don't use pretentious, fancy words. ... Plain comes from the Latin word planum, meaning "level ground." That's one meaning of the word, as in a flat prairie or low lying coastal flood plain.

Answer 2

$\underline\bold{Answer }$

A large area of flat land with few trees .