Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “flatten”

See all translations

flatten

verb [I or T] uk   /ˈflæt.ən/ us    /ˈflæt̬-/

flatten verb [I or T] (BECOME LEVEL)

C2 to become level or cause something to become level: Several trees were flattened (= knocked down) by the storm. The path flattens (out) (= does not go up so much) as it reaches the top of the hill.
More examples

flatten verb [I or T] (MAKE THINNER)

C2 to become level and thinner or to cause something to become level and thinner: Flatten the pastry into a thin disc with your hands. The biscuits will flatten out as they cook.
(Definition of flatten from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of flatten?
Add Cambridge dictionaries to your browser to your website

Definitions of “flatten” in other dictionaries

Word of the Day

be in/out of luck

to be able/unable to have or do what you want

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