Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “flat”

See all translations

flat

adjective
 
 
/flæt/ (flatter, flattest)
SMOOTH B1 smooth and level, with no curved, high, or hollow parts: a flat surface The countryside around here is very flat.Straight, even and level
WITHOUT EMOTION without any energy, interest, or emotion: Her voice sounded very flat.Tedious and uninspiring
WITHOUT AIR If a tyre is flat, it does not contain enough air.The exterior of vehicles
WITHOUT GAS If a drink is flat, it does not contain enough bubbles of gas.Drinks - general words
WITHOUT POWER UK If a battery (= object which provides electricity) is flat, it does not contain any more electrical power.Empty
a flat price/rate, etc a price/rate, etc that is the same for everyone and does not change: He charges a flat rate of 15 euros an hour.Value and price decreases
B flat/E flat, etc the musical note that is between the note B/E, etc and the note below itNotes of the musical scale
TOO LOW A flat musical note sounds unpleasant because it is slightly lower than it should be.Notes of the musical scale
LOW Flat shoes do not raise your feet far from the ground.Shoes and shoemaking
(Definition of flat adjective from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “flat” in other dictionaries

Word of the Day

hard luck story

a story or piece of information that someone tells you or writes about himself or herself, intended to make you feel feel sympathy for that person

Word of the Day

A certain je ne sais quoi: French words and phrases used in English

by Liz Walter,
January 21, 2015
It is an odd irony that the more sophisticated your use of English is, the more likely you are to use French words and phrases. Or, to be more accurate, ones you know to be French – words such as ballet, au pair, abattoir, fiancé, café, and restaurant are so entrenched in

Read More 

micro pig noun

January 26, 2015
an extremely small pig, bred to be a pet Micro pigs have become popular pets recently, with famous owners including Victoria Beckham, Paris Hilton and Olympic diver, Tom Daley.

Read More