plain

1. Flat, level.
2. Simple.
3. Obvious.
4. Open.
5. Not unusually beautiful; unattractive.

   Throughout high school she worried that she had a rather plain face.

6. Not a trump.

1. Simply.

   I plain forgot.

2. Plainly; distinctly.

   Tell me plain: do you love me or no?

noun

A lamentation.

1. To complain.
2. To lament, bewail.

   to plain a loss

1. A land area free of woodland, cities, and towns; open country.

   There are several species of wild flowers growing in this field.

2. A wide, open space that is usually used to grow crops or to hold farm animals.

   A crop circle was made in a corn field.

3. A place where competitive matches are carried out.
4. Any of various figurative meanings, regularly dead metaphors.

noun

An expanse of land with relatively low relief, usually exclusive of forests, deserts, and wastelands.

1. To level; to raze; to make plain or even on the surface.
2. To make plain or manifest; to explain.

1. A level or flat surface.
2. A flat surface extending infinitely in all directions (e.g. horizontal or vertical plane).
3. A level of existence or development. (eg, astral plane)
4. A roughly flat, thin, often moveable structure used to create lateral force by the flow of air or water over its surface, found on aircraft, submarines, etc.
5. (Unicode) Any of a number of designated ranges of sequential code points.
6. An imaginary plane which divides the body into two portions.

noun

A tool for smoothing wood by removing thin layers from the surface.

1. An airplane; an aeroplane.
2. Any of various nymphalid butterflies, of various genera, having a slow gliding flight. Also called aeroplanes.
3. The butterfly Bindahara phocides, family Lycaenidae, of Asia and Australasia.

1. A deciduous tree of the genus Platanus.
2. (Northern UK) A sycamore.