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English definition of “flat”

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flat

adjective uk   /flæt/ (flatter, flattest) us  

flat adjective (LEVEL)

B1 level and smooth, with no curved, high, or hollow parts: An ice rink needs to be completely flat. Roll out the pastry on a flat surface. Much of the countryside in that region is very flat.
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flat adjective (NOT HIGH)

B1 level but having little or no height: flat shoes (= ones without a raised heel) Flat bread is made without yeast, and therefore does not rise: Pitta and nan are two types of flat bread.flat cap/hat UK a hat that is not rounded on top and has little height

flat adjective (NOT ACTIVE)

not interesting, or without emotion or excitement: After the excitement of the party, life seems somewhat flat now. I thought her performance a little flat. I think the colours in this painting are kind of flat (= not varied or bright).

flat adjective (BATTERY)

UK ( US dead) with no electrical power left in it: I left my car lights on and now the battery is flat.

flat adjective (DRINK)

C2 If a drink is flat, it has stopped being fizzy (= with bubbles): If you don't put the top back on that bottle of beer, it will go flat.

flat adjective (COMPLETE)

[before noun] complete or certain, and not likely to change: His request for time off work was met with a flat refusal. The official has issued a flat denial of the accusations against her.

flat adjective (WITHOUT AIR)

B2 If something such as a tyre or ball is flat, it does not contain enough air: I got a flat tyre (= the air went out of it) after driving over a nail.

flat adjective (FIXED)

[before noun] (especially of an amount of money) fixed and not likely to change: We charge a flat fee/rate of $25 per hour.
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flat adjective (PROFITS)

If profits, sales, etc. are flat, they are not growing or increasing: Demand for our machinery abroad is increasing, while growth is flat at home.

flat

noun uk   /flæt/ us  

flat noun (HOME)

A1 [C] UK ( US apartment) a set of rooms for living in that are part of a larger building and are usually all on one floor: a furnished/unfurnished flat a block of flats They have a house in the country and a flat in Manchester.
See also
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flat noun (LEVEL GROUND)

[C often plural] an area of low, level ground, often near water: The salt flats are used for motor racing. The mud flats attract large numbers of birds.the flat of your hand the palm and fingers when they are held straight and level: He hit me with the flat of his hand.be on the flat UK to be on a level surface, not on a slope or hill: Most of the path is on the flat.

flat noun (TYRE)

[C usually singular] mainly US informal a tyre that does not have any or enough air in it : We were late because we had to stop and fix a flat.

flat noun (SHOES)

flats [plural] women's shoes without high heels: I feel more comfortable in flats.

flat noun (MUSIC)

[C] (a symbol for) a note that is a semitone lower than a stated note

flat

adjective, adverb uk   /flæt/ (flatter, flattest) us  

flat adjective, adverb (MUSIC)

(in music) lower than a particular note or the correct note: The top string on your violin is flat. She sang flat throughout the song (= all the notes she sang were too low).

flat

adverb uk   /flæt/ (flatter, flattest) us  

flat adverb (LEVEL)

B2 in a level position, often against another surface: Lay the cloth flat across the table.
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flat adverb (NOT HIGH)

into a flat shape without height: These patio chairs will fold flat for storage.

flat adverb (COMPLETELY)

UK informal ( US flat out) completely or to the greatest degree possible: She told him flat that she would not go to the show. Could you lend me some money, I'm flat broke (= I have no money).
See also
three minutes, half an hour, etc. flat informal exactly three minutes, half an hour, etc.: We managed to get to the station in five minutes flat.flat out informal as fast or as hard as possible: My car only does about 60 mph, even when it's going flat out. We've been working flat out to get this done.
(Definition of flat from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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