executive officer
Americannoun
-
the officer second in command of a military or naval organization.
-
an officer charged with executive duties, as in a corporation.
noun
-
XO. the second-in-command of any of certain military units
-
a specialist seaman officer, responsible under the captain for the routine efficient running of the ship in the US, British (formerly), and certain other navies
Etymology
Origin of executive officer
First recorded in 1780–90
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Matthew Fleissig is co-founder and chief executive officer of Pathstone, an investment and wealth advisory firm serving ultrawealthy families, family offices and institutions.
From MarketWatch ● Jul. 20, 2026
Crew members weren’t happy to go through the strait no matter what was promised to them, said Dimitris Maniatis, founder and chief executive officer of maritime risk company Marisks.
From The Wall Street Journal ● Jul. 18, 2026
But the firm's chief executive officer Christophe Fouquet said AI was still pushing his business forward.
From Barron's ● Jul. 15, 2026
Eager for more responsibility, he left Nine West in 1993 to become president and chief executive officer of U.S.
From The Wall Street Journal ● Jul. 2, 2026
Then IBM acquired a new chief executive officer who changed things drastically: IBM now has a more Microsoft-like organization, and I’m told that IBM’s innovativeness has improved as a result.
From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond
![]()
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.