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yay 1

Used as an exclamation of pleasure, approval, elation, or victory.

[Alteration of yea.]

yay 2

or yea  (yā)
So; by this amount: "The fish was yay big" he said, spreading his arms three feet apart.

[Probably from yea.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


informal an exclamation indicating approval, congratulation, or triumph
[C20: perhaps from yeah]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(yeɪ) Informal. interj.
1. hurrah.
2. so; to this extent: I knew you when you were yay high.
[1960–65; probably alter. of yea]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Yay - a branch of the Tai languages
Tai - the most widespread and best known of the Kadai family of languages
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
This collaboration will pave the way for the brighter future of our children, who will have our original 'Alif Say Yay' series on PTCL Smart TV and Smart TV App.
Yay: There's a reason this product from the luxury French brand is a favourite for so many.
The post Yay Abe adds fire to Burger King South Africa appeared first on SA Food Review .
The event is co-organized by YAY Gallery in partnership with ArtFaktor.
And yay to publishers looking beyond the Holocaust and the shtetl.
At that time, Facebook said that users would eventually be able to choose between a few emotions apart from Like: namely Love, Yay, Haha, Wow, Angry, Sad.
The company will roll out 'reactions' instead of a much requested dislike button which will include 'love', 'haha', 'yay', 'wow', 'sad' and 'angry', each of which has a corresponding picture.
The award-winning drama starrring Ruth Wilson and Dominic West (both Brits, yay!) returns as Alison and Noah are now together, while he and his wife are getting divorced.
In this, the first instalment in the series, Coco has decided the day is too 'delicious' to waste on school; so she stays home to have a carefree Yay Day, filled with a planned 'feast of fabulousness'.
"Yay, yay, yay!!!" I was quite pleased, glad to know that she was so keen to be at her lessons.