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CTO

American

Or C.T.O.

abbreviation

chief technology officer; chief technical officer: an executive in an organization who oversees policies and decisions relating to technology and science.

CTO British

abbreviation

cancelled to order (of postage stamps); postmarked in sheets for private sale

"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

Etymology

Origin of CTO

First recorded in 1985–90

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.

Bosworth, who goes by Boz, has been with the company since 2006 and became CTO in 2022.

From The Wall Street Journal • Mar. 24, 2026

Additionally, Nvidia has “made a significant investment” in the company, it said, which was founded and is led by former OpenAI CTO Mira Murati.

From MarketWatch • Mar. 10, 2026

The companies that we’ve seen be the most successful with AI are the companies where the CEO cares a lot, and it’s not just the CTO or the CIO.

From The Wall Street Journal • Dec. 29, 2025

Dr. Phillip Aitchison, CTO of the Monash University spinout Ionic Industries and a co-author of the study, noted that efforts to commercialize the technology are already underway.

From Science Daily • Dec. 1, 2025

Almost 30 years on, Mr Degioanni is now CTO and founder of cybersecurity firm Sysdig, which is a key sponsor of Wireshark.

From BBC • Jan. 27, 2025

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