EO

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executive order.

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Other definitions for EO (2 of 3)

eo-

a combining form meaning “early,” “primeval,” used in the formation of compound words: Eocene; eohippus.

Origin of eo-

<Greek, combining form of ēṓs (Attic héōs) dawn; akin to east, Aurora

Other definitions for EO (3 of 3)

e.o.

abbreviation

ex officio.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use EO in a sentence

And the Absinthe House has a full list: Other famous imbibers include P.T. Barnum, Oscar Wilde, and General Robert E. Lee.
The Bars That Made America Great|Nina Strochlic|December 28, 2014|DAILY BEAST
Because Duck Dynasty receives monster TV ratings and Robertson paid by a company (A&E) while making these public statements.
Butts, Brawls, and Bill Cosby: The Biggest Celebrity Scandals of 2014 |Kevin Fallon|December 27, 2014|DAILY BEAST
Originally conceived by author Clarence E. Mulford in 1904, Hopalong was crude, rough-talking, and dangerous.
The Most Confusing Christmas Music Lyrics Explained (VIDEO)|Kevin Fallon|December 24, 2014|DAILY BEAST
The guitar is tuned to E, and an Eminor chord on a guitar just rings and rings forever.
Yes, I Like Christmas Music. Stop Laughing.|Michael Tomasky|December 24, 2014|DAILY BEAST

And so the “Glo-o-o-o-o-o-o-o-ria” in this number earns it a spot on my list.
Yes, I Like Christmas Music. Stop Laughing.|Michael Tomasky|December 24, 2014|DAILY BEAST
Sleek finds it far harder work than fortune-making; but he pursues his Will-o'-the-Wisp with untiring energy.
The Pit Town Coronet, Volume I (of 3)|Charles James Wills
E was an Esquire, with pride on his brow; F was a Farmer, and followed the plough.
Boys and Girls Bookshelf; a Practical Plan of Character Building, Volume I (of 17)|Various
O death, how bitter is the remembrance of thee to a man that hath peace in his possessions!
The Bible, Douay-Rheims Version|Various
D'o l'on peut aussy veoir, quelle esperance il y a de planter une belle chrestient par tels evangelistes.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
That they may know thee, as we also have known thee, that there is no God beside thee, O Lord.
The Bible, Douay-Rheims Version|Various

British Dictionary definitions for EO (1 of 2)

eo-

combining form

early or primevalEocene; eohippus

Word Origin for eo-

from Greek, from ēōs dawn

British Dictionary definitions for EO (2 of 2)

e.o.

abbreviation for

ex officio

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