having an even and horizontal surface, or nearly so, without prominences or depressions; level without inclination; plane.-lying at full length, or spread out, upon the ground; level with the ground or earth; prostrate; as, to lie flat on the ground; hence, fallen; laid low; ruined; destroyed.-wanting relief; destitute of variety; without points of prominence and striking interest.-tasteless; stale; vapid; insipid; dead; as, fruit or drink flat to the taste.-unanimated; dull; uninteresting; without point or spirit; monotonous; as, a flat speech or composition.-lacking liveliness of commercial exchange and dealings; depressed; dull; as, the market is flat.-clear; unmistakable; peremptory; absolute; positive; downright.-below the true pitch; hence, as applied to intervals, minor, or lower by a half step; as, a flat seventh; a flat.-not sharp or shrill; not acute; as, a flat sound.-sonant; vocal; -- applied to any one of the sonant or vocal consonants, as distinguished from a nonsonant (or sharp) consonant.-in a flat manner; directly; flatly.-without allowance for accrued interest.-a level surface, without elevation, relief, or prominences; an extended plain; specifically, in the united states, a level tract along the along the banks of a river; as, the mohawk flats.-a level tract lying at little depth below the surface of water, or alternately covered and left bare by the tide; a shoal; a shallow; a strand.-something broad and flat in form-a flat-bottomed boat, without keel, and of small draught.-a straw hat, broad-brimmed and low-crowned.-a car without a roof, the body of which is a platform without sides; a platform car.-a platform on wheel, upon which emblematic designs, etc., are carried in processions.-the flat part, or side, of anything; as, the broad side of a blade, as distinguished from its edge.-a floor, loft, or story in a building; especially, a floor of a house, which forms a complete residence in itself.-a horizontal vein or ore deposit auxiliary to a main vein; also, any horizontal portion of a vein not elsewhere horizontal.-a dull fellow; a simpleton; a numskull.-a character [/] before a note, indicating a tone which is a half step or semitone lower.-a homaloid space or extension.-to make flat; to flatten; to level.-to render dull, insipid, or spiritless; to depress.-to depress in tone, as a musical note; especially, to lower in pitch by half a tone.-to become flat, or flattened; to sink or fall to an even surface.-to fall form the pitch.