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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.

“We see it as kind of a back-to-school moment,” the CTO said.

From The Wall Street Journal • Apr. 16, 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

Murati responded that Zoph was already CTO and asked why he hadn’t been doing his job for months, they said.

From The Wall Street Journal • Jan. 21, 2026

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