Idioms for once

Origin of once

First recorded before 1150; Middle English ones, Old English ānes, originally genitive of ān “one” replacing Middle English enes, Old English ǣnes “once,” equivalent to ǣne “once” (originally instrumental of ān ) + -es adverb suffix; see one, -s1
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Example sentences from the Web for once

British Dictionary definitions for once

once
/ (wʌns) /

adverb

conjunction

(subordinating) as soon as; if ever or wheneveronce you begin, you'll enjoy it

noun

Word Origin for once

C12 ones, ānes, adverbial genitive of on, ān one
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

Idioms and Phrases with once

once

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.