spy on
phrasal 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
During the balance of his presidency, Roosevelt used Secret Service agents to spy on his political opponents, both Democrats and Republicans.
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Patrick Eddington, Oc Register, 18 May 2025
Her two artsy friends, Janis and Damian, persuade her to infiltrate the popular girls’ clique — led by queen bee Regina George — and spy on them.
—Matthew J. Palm, The Orlando Sentinel, 29 Mar. 2025
Recent reports even suggested that a quarter of Americans think someone is spying on their smartphone usage.
—Davey Winder, Forbes.com, 13 May 2025
Americans still considered spying on adversaries unsavory, but their government simply wasn’t doing that much of it.
—James Santel, The Atlantic, 8 May 2025
See All Example Sentences for spy on
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Patrick Eddington, Oc Register, 18 May 2025
Her two artsy friends, Janis and Damian, persuade her to infiltrate the popular girls’ clique — led by queen bee Regina George — and spy on them.
—Matthew J. Palm, The Orlando Sentinel, 29 Mar. 2025
Recent reports even suggested that a quarter of Americans think someone is spying on their smartphone usage.
—Davey Winder, Forbes.com, 13 May 2025
Americans still considered spying on adversaries unsavory, but their government simply wasn’t doing that much of it.
—James Santel, The Atlantic, 8 May 2025
See All Example Sentences for spy on
Cite this Entry
“Spy on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spy%20on. Accessed 1 Jun. 2025.
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