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CIO

American

Or C.I.O.

abbreviation

Business. chief information officer: an executive in an organization who oversees policies and decisions relating to information technology and computer systems.
Business. chief investment officer: an executive in an organization who oversees financial assets.
Congress of Industrial Organizations.

CIO British

abbreviation

Congress of Industrial Organizations See also AFL-CIO

"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

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.

Co-author Alap Shah, CIO of Lotus Technology Management, confirmed on Bloomberg TV that his firm was short names in these sectors.

From MarketWatch • Mar. 19, 2026

Losing any American lives will drive the U.S. military to push for more unmanned vehicles, says Adrian Helfert, CIO of multi-asset strategies at Westwood.

From Barron's • Mar. 9, 2026

“You’ve got this somewhat dystopian narrative permeating the psychology of the market” with respect to AI and jobs, asset-management firm’s CIO says.

From The Wall Street Journal • Mar. 1, 2026

Mark Malek, CIO at Siebert Financial, described the reaction as “textbook,” but cautioned that it was focused on the “direction of surprise, not necessarily a regime shift” in the labor market.

From Barron's • Feb. 11, 2026

Educated at convent of Mont CIO Chantal in W. Va. As young woman was teacher and leader in Southern library movement.

From Jailed for Freedom by Stevens, Doris

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