- The definition of flat is something with a smooth level surface, something touching with as many points as possible, something that doesn't vary, or something that is dull in taste or appearance.
- An example of flat is the surface of a table.
- An example of flat is someone laying down with their head, back, legs and heals touching the ground.
- An example of flat is a flat rate for the pricing of any service performed.
- An example of flat is carbonated soda that has lost its fizz.
This table is a flat surface.
flat definition by Webster's New World
- having a smooth, level surface; having little or no depression or elevation
- lying extended at full length
- spread out smooth and level
- touching at as many points as possible: with his back flat against the wall
- having little depth or thickness; broad, even, and thin
- having a flat heel or no heel: flat shoes
- designating or having an almost straight or level trajectory or flight
- absolute; positive: a flat denial
- not variable; fixed: a flat rate, a flat tax
- without much business activity: a flat market
- having little or no sparkle or taste; insipid: a flat drink
- having little or no interest; monotonous; dull
- not clear or full; blurred: a flat sound
- ☆ emptied of air: a flat tire
- ☆ Informal completely without money; penniless
- without gloss: flat paint
- lacking relief, depth, or perspective
- uniform in tint or shade
- not having the sign to: said of an infinitive: Ex.: go in “make it go”
- not having an inflectional ending: said esp. of certain adverbs: Ex.: he drove fast
- lower in pitch by a half step: D-flat (D)
- out of tune by being below the true or proper pitch
- Phonet. designating the vowel a when it represents the sound (a) as in had or hat, articulated with the tongue in a relatively level position
- Photog. lacking in contrast
Origin: Middle English ; from Old Norse flatr, akin to Old High German flaz ; from Indo-European an unverified form plāt, plēt-, wide, flat (from source Classical Greek platys, broad, Old English flet, floor) ; from base an unverified form plā-, broad
- in a flat manner; flatly (in various senses)
- in a prone or supine position
- exactly; precisely: to run a race in ten seconds flat
- bluntly; abruptly: she left him flat
- ☆ Finance with no interest
- Music below the true or proper pitch
- a flat surface or part: the flat of the hand, of a sword, etc.
- an expanse of level land
- a low-lying marsh
- a shallow; shoal
- any of various flat things; specif.,
- a shallow box or container, as for growing seedlings
- ☆ flatcar
- a piece of theatrical scenery on a flat frame
- ☆ a deflated tire
- women's flat-heeled shoes or slippers
- Football the area flanking either end of the offensive line
- a note or tone one half step below another
- the sign () indicating such a note
Origin: altered ; from Scottish dialect, dialectal flet ( Middle English and amp; Old English flet), a floor (of a dwelling): see flat
flat definition by American Heritage Dictionary
adjective flat·ter, flat·test
- Having a horizontal surface without a slope, tilt, or curvature.
- Having a smooth, even, level surface: a skirt sewed with fine flat seams.
- Having a relatively broad surface in relation to thickness or depth: a flat board. See Synonyms at level.
- Stretched out or lying at full length along the ground; prone.
- Free of qualification; absolute: a flat refusal.
- Fixed; unvarying: a flat rate.
- Lacking interest or excitement; dull: a flat scenario.
- a. Lacking in flavor: a flat stew that needs salt.b. Having lost effervescence or sparkle: flat beer.
- a. Deflated. Used of a tire.b. Electrically discharged. Used of a storage battery.
- Of or relating to a horizontal line that displays no ups or downs and signifies the absence of physiological activity: A flat electroencephalogram indicates a loss of brain function.
- Commercially inactive; sluggish: flat sales for the month.
- Unmodulated; monotonous: a flat voice.
- Lacking variety in tint or shading; uniform: “The sky was bright but flat, the color of oyster shells” (Anne Tyler).
- Not glossy; mat: flat paint.
- Music a. Being below the correct pitch.b. Being one half step lower than the corresponding natural key: the key of B flat.
- Designating the vowel a as pronounced in bad or cat.
- Nautical Taut. Used of a sail.
- a. Level with the ground; horizontally.b. On or up against a flat surface; at full length.
- So as to be flat.
- a. Directly; completely: went flat against the rules; flat broke.b. Exactly; precisely: arrived in six minutes flat.
- Music Below the intended pitch.
- Business Without interest charge.
- A flat surface or part.
- A stretch of level ground. Often used in the plural: salt flats.
- A shallow frame or box for seeds or seedlings.
- A movable section of stage scenery, usually consisting of a wooden frame and a decorated panel of wood or cloth.
- A flatcar.
- A deflated tire.
- A shoe with a flat heel.
- A large flat piece of mail.
- A horse that competes in a flat race. Also called runner.
- Music a. A sign (♭) used to indicate that a note is to be lowered by a half step.b. A note that is lowered a half step.
- Football The area of the field to either side of an offensive formation.
- To make flat; flatten.
- Music To lower (a note) a semitone.
Origin: Middle English, from Old Norse flatr; see plat- in Indo-European roots.
- flatˈly adverb
- flatˈness noun
- An apartment on one floor of a building.
- Archaic A story in a house.
Origin: Alteration of Scots flet, inner part of a house, from Middle English, from Old English, floor, dwelling; see plat- in Indo-European roots.
flat - Computer Definition
flat - Investment & Finance Definition
- In trading, a term used to indicate a market or a price that is neither rising or falling. Low trading volumes often produce flat trading conditions.
- The trading position of a trader who has sold all of his or her holdings and is neither long or short.
- Of, relating to, or being a market maker's inventory position that is neither long nor short; that is, the inventory is zero.
- Of, relating to, or being a bond that trades without accrued interest. For example, bonds of a company in bankruptcy proceedings trade flat. A bond trading flat is indicated in bond transaction tables by the symbol f.
flat - Phrases/Idioms
- at full speed, with maximum effort, etc.
- clear(ly); definite(ly)