Open country, esp. as opposed to woodland; a stretch of open land; a plain. In singular. Now rare or merged in sense 2.

A plain, field; a piece of meadow land; spec. a portion of unenclosed land under the open-field system: now surviving locally in the proper…

A level plain. Obsolete.

A piece of open country; a plain; in early use (with the) sometimes = ‘the plain’, the ground, the earth; in later use chiefly, an elevated tract of…

A piece of level ground; a level expanse; a stretch of country without hills, a plain; the low ground through which a river flows.

A broad tract of land which is comparatively flat; an expanse of level ground; (occasionally) terrain of this kind.

a place in the fields, a level open place; cf. fieldy, adj.

An expanse of level, open country, a plain; a level field; a clearing.

A naturally level space or extended surface. Also = the ground (obsolete exc. dialect).

A level space. East Anglian dialect.

A wooded district or an open country; a wold. Now only poetic.

An expanse of level open country; a plain unbroken by hills, woods, etc.; = champaign, n. 1.

Plain, level surface, field. watery camp (cæruleus campus, campus latus aquarum): the surface of the sea. Obsolete.

A level tract of land; a stretch of country approximately horizontal and unbroken by elevations: applied spec. (as a proper name) to certain large…

A tract of open country; a plain; = champaign, n. adj. Obsolete.

A flat or level region, a plain.

‘A large open level tract of ground without hills’ (Johnson); plain; = champaign, n. adj.

transferred. A level open space.

A region of flat land. Originally U.S.

An extent of flat open country; a plain. Frequently plural.

transferred. An extensive plain, usually treeless.