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flat–out
2 ENTRIES FOUND:
flat–out
(adjective)
flat out
(adverb)
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flat–out
/
ˈ
flætˌaʊt/
adjective
flat–out
/
ˈ
flætˌaʊt/
adjective
Learner's definition of FLAT–OUT
always used before a noun
informal
1
chiefly US
:
absolute and complete
It was a
flat-out
lie.
a
flat-out
refusal
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2
:
greatest possible
:
maximum
a
flat-out
effort
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passive
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