<p><strong>Adjective</strong></p><ul><li>flat·ter, flat·test.</li><li>horizontally level: a flat roof.</li><li>having a surface that is without marked projections or depressions: a broad, flat face.</li><li>lying horizontally and at full length, as a person; prostrate: He was flat on the canvas after the knockdown.</li><li>thrown down, laid low, or level with the ground, as fallen trees or buildings.</li><li>having a generally level shape or appearance; not deep or thick: a flat plate.</li><li>low and broad (of the heel of a shoe).</li><li>without vitality or animation; lifeless; dull: flat writing.</li><li>lacking flavor, sharpness, or life, as wine or food; stale.</li><li>lacking contrast or gradations of tone or color.</li><li>lacking resonance and variation in pitch; monotonous: a flat delivery of the speech.</li><li>(of a tone) lowered a half step in pitch: B flat.</li></ul><p><strong>Noun</strong></p><ul><li>something flat.</li><li>a shoe, especially a woman's shoe, with a flat heel or no heel.</li><li>a flat surface, side, or part of anything: He struck me with the flat of his hand.</li><li>a flat area: salt flats.</li><li>a piece of scenery consisting of a wooden frame, usually rectangular, covered with lightweight board or fabric.</li><li>a shallow, lidless box or tray used for rooting seeds and cuttings and for growing young plants.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to make flat.</li><li>Music: to lower (a pitch), especially one half step.</li><li>(used without object) to become flat.</li></ul><p><strong>Adverb</strong></p><ul><li>in a flat position; horizontally; levelly.</li><li>in a flat manner; positively; absolutely.</li></ul><p><strong>End of Response</strong></p>