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yesterday

American  
[yes-ter-dey, -dee] / ˈyɛs tərˌdeɪ, -di /

adverb

  1. on the day preceding this day.

  2. a short time ago.

    Yesterday your money went further.

noun

  1. the day preceding this day.

  2. time in the immediate past.

adjective

  1. belonging or pertaining to the day before or to a time in the immediate past.

    yesterday morning.
yesterday British  
/ -ˌdeɪ, ˈjɛstədɪ /

noun

  1. the day immediately preceding today

  2. (often plural) the recent past

"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

adverb

  1. on or during the day before today

  2. in the recent past

"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
yesterday Idioms  

  1. see not born yesterday.

Other Word Forms

  • yesterdayness noun

Etymology

Origin of yesterday

before 950; Middle English; Old English geostran dæg. See yester-, day

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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