adjective
I'd rather have a paper with a plain surface, not an embossed one, for the bedroom walls
His intentions regarding my daughter are plain enough. The plain fact is that she despises him
I want to see some plain talk between the two of us
Don't you find the average business suit a very plain affair?
Who would believe that such a plain child could become such a beautiful woman?
noun
The plain stretched out before us as far as the eye could see
US