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flat 1

adj. flat·ter, flat·test
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.
3. Free of qualification; absolute: a flat refusal.
4. Fixed; unvarying: a flat rate.
5. 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.
8. 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.
9. Of or relating to a hierarchy with relatively few tiers or levels: a flat organization chart.
10. Commercially inactive; sluggish: flat sales for the month.
11. Unmodulated; monotonous: a flat voice.
12. Lacking variety in tint or shading; uniform: "The sky was bright but flat, the color of oyster shells" (Anne Tyler).
13. Not glossy; matte: flat paint.
14. Music
a. Being below the correct pitch.
b. Being one half step lower than the corresponding natural key: the key of B flat.
15. Designating the vowel a as pronounced in bad or cat.
16. Nautical Taut. Used of a sail.
17. Informal Having small breasts.
a. Level with the ground; horizontally.
b. On or up against a flat surface; at full length.
2. So as to be flat.
a. Directly; completely: went flat against the rules; flat broke.
b. Exactly; precisely: arrived in six minutes flat.
4. Music Below the intended pitch.
5. Business Without interest charge.
1. A flat surface or part.
2. often flats A stretch of level ground: salt flats.
3. A shallow frame or box for seeds or seedlings.
4. A movable section of stage scenery, usually consisting of a wooden frame and a decorated panel of wood or cloth.
5. A flatcar.
6. A deflated tire.
7. A shoe with a flat heel.
8. A large flat piece of mail.
9. A horse that competes in a flat race. Also called runner.
10. 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.
11. Football The area of the field to either side of an offensive formation.
v. flat·ted, flat·ting, flats
1. To make flat; flatten.
2. Music To lower (a note) a semitone.
v.intr. Music
To sing or play below the proper pitch.

[Middle English, from Old Norse flatr; see plat- in Indo-European roots.]

flat′ly adv.
flat′ness n.

flat 2

1. An apartment on one floor of a building.
2. Archaic A story in a house.

[Alteration of Scots flet, inner part of a house, from Middle English, from Old English, floor, dwelling; see plat- in Indo-European roots.]



Flat is usually a noun or an adjective, but it is sometimes an adverb.

1. 'flat' used as a noun

In British English, a flat is a set of rooms for living in, usually on one floor of a large building.

...a ground floor flat.
2. 'flat' used as an adjective or adverb

Something that is flat is not sloping, curved, or pointed.

Every flat surface in our house is covered with junk.
Use a saucepan with a flat base.

If something lies or rests flat against a surface, all of it is touching the surface.

He was lying flat on his back.
She let the blade of her oar rest flat upon the water.

A flat refusal, denial, or rejection is definite and firm, and not likely to be changed.

He has issued a flat denial of these allegations.
3. 'flatly'

The adverb corresponding to this meaning of flat is flatly, not 'flat'.

She has flatly refused to go.
The Norwegians and Danes flatly rejected the evidence.

Flatly goes in front of refuse and deny, but you put it after say and state.

He flatly refused to accept it.
Many scientists flatly denied the possibility.
I could use some money, Sarah told him flatly.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.flatly - in an unqualified mannerflatly - in an unqualified manner; "he flatly denied the charges"


adverb absolutely, completely, positively, categorically, unequivocally, unhesitatingly He flatly refused to discuss it.


In a direct, positive manner:
Informal: flat out.
بِصَراحَه، بصورة تامَّ
ákveîiî; eindregiî
kesin olarakkesinlikle


[ˈflætlɪ] ADV
1. (= without emotion) [read, recite] → monótonamente; [say, reply] → de manera inexpresiva
2. (= categorically, completely) [refuse, deny] → terminantemente, rotundamente; [contradict] → de plano
we are flatly opposed to itnos oponemos terminantemente or rotundamente a ello


[ˈflætli] adv
[refuse, deny] → catégoriquement
(= without expression) [say] → impassiblement


(= completely) refuse, deny, rejectkategorisch, rundweg; contradictaufs Schärfste; to be flatly against or opposed to somethingetw rundweg ablehnen; (in principle) → kategorisch gegen etw sein; to be flatly opposed to doing somethingkategorisch dagegen sein, etw zu tun
(= unemotionally) say, stateausdruckslos, nüchtern


[ˈflætlɪ] adv (refuse) → categoricamente, nettamente


(flӕt) adjective
1. level; without rise or fall. a flat surface.
2. dull; without interest. She spent a very flat weekend.
3. (of something said, decided etc) definite; emphatic. a flat denial.
4. (of a tyre) not inflated, having lost most of its air. His car had a flat tyre.
5. (of drinks) no longer fizzy. flat lemonade; (also adverb) My beer has gone flat.
6. slightly lower than a musical note should be. That last note was flat; (also adverb) The choir went very flat.
stretched out. She was lying flat on her back.
1. (American aˈpartment) a set of rooms on one floor, with kitchen and bathroom, in a larger building or block. Do you live in a house or a flat?
2. (in musical notation) a sign (♭) which makes a note a semitone lower.
3. a level, even part. the flat of her hand.
4. (usually in plural) an area of flat land, especially beside the sea, a river etc. mud flats.
ˈflatly adverb
definitely; emphatically. She flatly denied it.
ˈflatten verb
(often with out) to make or become flat. The countryside flattened out as they came near the sea.
flat rate
a fixed amount, especially one that is the same in all cases. He charged a flat rate for the work.
flat out
as fast, energetically etc as possible. She worked flat out.
References in classic literature ?
It was a beautiful, bounteous, blue day; the spangled sea calm and cool, and flatly stretching away, all round, to the horizon, like gold-beater's skin hammered out to the extremest.
Lockwood, I argued and complained, and flatly refused him fifty times; but in the long run he forced me to an agreement.
She had hitherto held the position of a high authority on all domestic questions; and she flatly declined to get off her pedestal in deference to any change in the family circumstances, no matter how amazing or how unexpected that change might be.
Entreating Herbert to tell me how he had come to my rescue - which at first he had flatly refused to do, but had insisted on my remaining quiet - I learnt that I had in my hurry dropped the letter, open, in our chambers, where he, coming home to bring with him Startop whom he had met in the street on his way to me, found it, very soon after I was gone.
unjust thou saist Flatly unjust, to binde with Laws the free, And equal over equals to let Reigne, One over all with unsucceeded power.
He asked her the question flatly before my face, and I must say I thought it a strange thing for her to consent to.
Then he flatly told me to shut up, with my tricks of the mirrors, my springs, my revolving doors and my palaces of illusions
Others flatly affirmed that the evil one had got possession of Cotton Mather, and was at the bottom of the whole business.
I was amused at the appearance of four or five old women who, in a state of utter nudity, with their arms extended flatly down their sides, and holding themselves perfectly erect, were leaping stiffly into the air, like so many sticks bobbing to the surface, after being pressed perpendicularly into the water.
Hunt had suggested, in their present extremity, that it should be killed for food; to which the half-breed flatly refused his assent, and cudgeling the miserable animal forward, pushed on sullenly, with the air of a man doggedly determined to quarrel for his right.
Miss Tita gave me this information flatly, without expression; her tone might have made it a piece of trivial gossip.
And then, as Archer made no effort to glance at the paper or to repudiate the suggestion, the lawyer somewhat flatly continued: "I don't say it's conclusive, you observe; far from it.