plain
- (adjective): Flat, level.
- (adjective): Simple.
- (adjective): Obvious.
- (adjective): Open.
- (adjective): Not unusually beautiful; unattractive.
- (adjective): Not a trump.
- (adverb): Simply.
- (adverb): Plainly; distinctly.
- Throughout high school she worried that she had a rather plain face.
- I plain forgot.
- Tell me plain: do you love me or no?