Plain1. (v. i.) To lament; to bewail; to complain.
2. (v. t.) To lament; to mourn over; as, to plain a loss.
3. (superl.) Without elevations or depressions; flat; level; smooth; even. See Plane.
4. (superl.) Open; clear; unencumbered; equal; fair.
5. (superl.) Not intricate or difficult; evident; manifest; obvious; clear; unmistakable.
6. (superl.) Void of extraneous beauty or ornament; without conspicuous embellishment; not rich; simple.
7. (superl.) Not highly cultivated; unsophisticated; free from show or pretension; simple; natural; homely; common.
8. (superl.) Free from affectation or disguise; candid; sincere; artless; honest; frank.
9. (superl.) Not luxurious; not highly seasoned; simple; as, plain food.
10. (superl.) Without beauty; not handsome; homely; as, a plain woman.
11. (superl.) Not variegated, dyed, or figured; as, plain muslin.
12. (superl.) Not much varied by modulations; as, a plain tune.
13. (adv.) In a plain manner; plainly.
14. (a.) Level land; usually, an open field or a broad stretch of land with an even surface, or a surface little varied by inequalities; as, the plain of Jordan; the American plains, or prairies.
15. (n.) A field of battle.
16. (v.) To plane or level; to make plain or even on the surface.
17. (v.) To make plain or manifest; to explain.
Thesaurus Entries
Attic, Bohemian, Ciceronian, Lebensraum, Mickey Mouse, Spartan, abrupt, absolute, absolutely, affable, agricultural region, air space, all-embracing, all-encompassing, all-out, all-pervading, apparent, arable land, articulate, artless, ascetic, audible, austere, back country, bald, bare, baseborn, basic, beautiless, below the salt, billiard table, black belt, blemished, blotted, bluff, blunt, born, born yesterday, bowling green, broad, broad-based, brusque, cacophonic, cacophonous, campestral, campestrian, campo, candid, casual, champaign, chaste, cheerful, childlike, citrus belt, classic, classical, clean, clean-cut, clear, clear as crystal, clear as day, clear space, clear-cut, clearance, clearing, cockney, coherent, colorless, comfortable, common, commonplace, comprehensive, confiding, congenital, connected, consistent, conspicuous, consummate, contrastive, cordial, corn belt, cotton belt, countryside, cozy, crisp, crystal-clear, crystalline, cushy, dead flat, dead level, deep-dyed, defaced, defined, definite, degage, desert, direct, discernible, discreet, disfigured, distant prospect, distinct, distinctive, down, downright, drab, dry, dull, dust bowl, dyed-in-the-wool, dysphemistic, dysphemized, earth, easy, easy as pie, easygoing, effortless, egregious, elegant, elementary, empty view, esplanade, essential, even, everyday, evident, exhaustive, explicit, express, facile, familiar, farm belt, farm country, farmland, featureless, finished, flat, flatland, flattened, floor, flush, folksy, forthright, frank, frankhearted, free, free and easy, free-speaking, free-spoken, free-tongued, friendly, fruit belt, fundamental, garden, garden-variety, genuine, glade, glaring, glib, graceful, gracile, gracious, graphic, grass roots, grassland, grazing region, ground, guileless, haymish, hearable, heart-to-heart, heath, hi-fi, high-fidelity, highlands, homaloid, homaloidal, homelike, homely, homespun, homey, homish, homogeneous, honest, horizontal, horizontal axis, horizontal fault, horizontal line, horizontal parallax, horizontal plane, horizontal projection, household, humble, humble-looking, humble-visaged, humblest, humdrum, ill-favored, in focus, indisputable, indivisible, indubitable, inelegant, informal, ingenu, ingenuous, inglorious, innocent, innocuous, insipid, intelligible, intensive, intimate, irreducible, irregular, irretrievably, irrevocably, lean, least, ledge, legible, level, level line, level plane, light, limpid, living space, llano, loose, loud and clear, low, lowborn, lowbred, lowest, lowlands, lowliest, lowly, lucid, luminous, manifest, marred, matter-of-fact, mead, meadows and pastures, mean, mean sea level, mere, modest, monolithic, moor, moorland, moors, mundane, muted