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all-time

[ awl-tahym ]
/ ˈɔlˌtaɪm /
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adjective

never surpassed or greater: Production will reach an all-time high.
regarded as such in its entire history: an all-time favorite song.

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The rainy weather could not ________ my elated spirits on my graduation day.

Origin of all-time

First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for all-time

all-time

adjective

(prenominal) informal unsurpassed in some respect at a particular timean all-time record at the Olympics
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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