flatten Meaning in the Cambridge English Dictionary
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Meaning of “flatten” in the English Dictionary

"flatten" in British English

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flattenverb [I or T]

uk   /ˈflæt.ən/  us   /ˈflæt̬-/

flatten verb [I or T] (BECOME LEVEL)

C2 to ​becomelevel or ​cause something to ​becomelevel: 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.
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flatten verb [I or T] (MAKE THINNER)

C2 to ​becomelevel and ​thinner or to ​cause something to ​becomelevel and ​thinner: Flatten the ​pastry into a ​thindisc with ​yourhands. The ​biscuits will flatten out as they ​cook.
(Definition of flatten from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"flatten" in American English

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flattenverb [I/T]

 us   /ˈflæt·ən/
to make or ​becomeflat: [I] In the ​roadrace, you go over a few ​steephills but then the ​course flattens out.
(Definition of flatten from the Cambridge Academic Content Dictionary © Cambridge University Press)

"flatten" in Business English

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flattenverb [I or T]

uk   us   /ˈflætən/
to ​stopincreasing or ​stop something from ​increasing: to flatten ​prices/​profits The ​economyhit a ​peak about a ​year ago and now it's flattening.
HR to ​reduce the ​number of different ​levels of ​managers and other ​employees in an ​organization: We are taking out a ​level of ​management and flattening the ​organization.
Phrasal verbs
(Definition of flatten from the Cambridge Business English Dictionary © Cambridge University Press)
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