spy on

verb

spied on; spying on; spies on
: to watch (someone) secretly
He spies on his neighbors.
Have you been spying on me?

Examples of spy on in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Germany's military space command chief Major General Michael Traut admitted earlier this year that the Luch spacecraft have been spying on European strategic communications in space for years. — Tereza Pultarova, Space.com, 27 Oct. 2026 In other security news this week, a former OpenAI employee accused of using a recording device to spy on company executives has a lot of support from a surprising source. — Kim Key, PC Magazine, 23 Oct. 2026 Prosecutors say Zhang, who also goes by Heather, spied on a son of Taiwan’s president outside his home in the Seattle area at the behest of Chinese officials. — David Douglas, NBC news, 19 Oct. 2026 The Florida charges accuse the Castro regime of spying on Brothers to the Rescue as well as American government offices as part of the alleged conspiracy. — Elahe Izadi, Washington Post, 19 Oct. 2026 See All Example Sentences for spy on

Browse Nearby Words

Cite this Entry

“Spy on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spy%20on. Accessed 29 Oct. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster