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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.

Kempe, Grant Thornton’s CIO, sees a similar trend playing out where the role of core business software changes.

From The Wall Street Journal • Mar. 23, 2026

“Investors need to think of volatility as a friend,” says Thomas Lee, co-president and CIO at Parametric.

From Barron's • Mar. 21, 2026

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

The CIO 290 is going to buy me and my woman and the kids a nice, fine, pretty home.

From Blue Ridge Country by Caldwell, Erskine

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