- 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.
- 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 of flatMiddle 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
- at full speed, with maximum effort, etc.
- clear(ly); definite(ly)
Origin of flataltered ; from Scottish dialect, dialectal flet ( Middle English and amp; Old English flet), a floor (of a dwelling): see flat
- a. Having a smooth, even surface: a flat field. See Synonyms at level.b. Having a relatively broad level surface in relation to thickness or depth: a flat box.
- a. Being in horizontal position; lying down: flat on his back.b. Being without slope or curvature: a flat line on a chart.c. Having a low heel or no heel: flat shoes.
- 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.
- Of or relating to a hierarchy with relatively few tiers or levels: a flat organization chart.
- 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; matte: 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.
- often flats A stretch of level ground: 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 semitone.b. A note that is lowered a semitone.
- Football The area of the field to either side of an offensive formation.
verbflat·ted, flat·ting, flats
- To make flat; flatten.
- Music To lower (a note) a semitone.
verb, intransitive Music
Origin of flatMiddle English, from Old Norse flatr; see plat- in Indo-European roots.
- An apartment on one floor of a building.
- Archaic A story in a house.
Origin of flatAlteration of Scots flet, inner part of a house, from Middle English, from Old English, floor, dwelling; see plat- in Indo-European roots.
(comparative flatter, superlative flattest)
- Having no variations in height.
- The land around here is flat.
- (of a tire or other inflated object) Deflated, especially because of a puncture.
- (music, note) Lowered by one semitone.
- (music) Of a note or voice, lower in pitch than it should be.
- (music, voice) Without variations in pitch.
- Of a carbonated drink, with all or most of its carbon dioxide having come out of solution so that the drink no longer fizzes or contains any bubbles.
- The party was a bit flat.
- (wine) Lacking acidity without being sweet.
- His claim was in flat contradiction to experimental results.
- I'm not going to the party and that's flat.
- (slang) Describing certain features, usually the breasts or buttocks, that are extremely small or not visible at all.
- That girl is completely flat on both sides.
- (of a battery) Unable to emit power; dead.
- (juggling, of a throw) Without spin; spinless.
- Lacking liveliness of commercial exchange and dealings; depressed; dull.
- The market is flat.
- (phonetics, dated, of a consonant) sonant; vocal, as distinguished from a sharp (non-sonant) consonant
- A great tobacco taker too, — that's flat.
(comparative more flat, superlative most flat)
- So as to be flat.
- Spread the tablecloth flat over the table.
- I asked him if he wanted to marry me and he turned me down flat.
- (with units of time, distance, etc) Not exceeding.
- He can run a mile in four minutes flat.
- I am flat broke this month.
- Directly; flatly.
- (finance, slang) Without allowance for accrued interest.
- An area of level ground.
- (music) A note played a semitone lower than a natural, denoted by the symbol ♭ sign placed after the letter representing the note (e.g., B♭) or in front of the note symbol (e.g. ♭♪).
- (informal, automotive) A flat tyre/tire.
- (in the plural) A type of ladies' shoes with very low heels.
- She liked to walk in her flats more than in her high heels.
- (painting) A thin, broad brush used in oil and watercolor/watercolour painting.
- The flat part of something:
- A wide, shallow container.
- a flat of strawberries
- (geometry) A subset of n-dimensional space that is congruent to a Euclidean space of lower dimension.
- A flat-bottomed boat, without keel, and of small draught.
- A straw hat, broad-brimmed and low-crowned.
- A railroad car without a roof, and whose body is a platform without sides; a platform car.
- A platform on a wheel, upon which emblematic designs etc. are carried in processions.
- (mining) A horizontal vein or ore deposit auxiliary to a main vein; also, any horizontal portion of a vein not elsewhere horizontal.
- (technical theatre) A rectangular wooden structure covered with masonite, lauan or muslin that can be raised as a platform.
- (note): sharp
- (shoes): high heels
(third-person singular simple present flats, present participle flatting, simple past and past participle flatted)
- (poker slang) To make a flat call; to call without raising.
- (intransitive) To become flat or flattened; to sink or fall to an even surface.
- (intransitive, music, colloquial) To fall from the pitch.
- (music) To depress in tone, as a musical note; especially, to lower in pitch by half a tone.
- (dated) To make flat; to flatten; to level.
- (dated) To render dull, insipid, or spiritless; to depress.
From Middle English flat, from Old Norse flatr (Norwegian and Swedish flat, Danish flad), from Proto-Germanic *flataz, from Proto-Indo-European *plat- (“flat”); akin to German Flöz (“a geological layer”), Ancient Greek πλατύς (platus), Latvian plats, Sanskrit प्रत्हस् (“extension”) .
- (chiefly UK) An apartment.
From 1795, alteration of Scots flet (“inner part of a house”), from Middle English flet (“dwelling”), from Old English flet, flett (“ground floor, dwelling”), from Proto-Germanic *flatją (“floor”), from Proto-Germanic *flataz (“flat”), from Proto-Indo-European *plat- (“flat”). Akin to Old Frisian flet, flette (“dwelling, house”). More at flet, flat1.
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.