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

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Chinese tech firms have long been dogged by allegations that Beijing uses their systems to spy on Western entities and individuals. —

Ryan Browne, CNBC, 4 Feb. 2025 Paragon may have also been sold to a US investment firm called AE Industrial Partners, which has raised further fears that the company’s technology could be used to spy on phones in the US. —

Michael Kan, PCMAG, 31 Jan. 2025 The intelligence community maintains that the program has helped to protect the United States from terrorist attacks, but many of Mr. Trump’s allies argue that it has been misused to spy on conservatives. —

Karoun Demirjian, New York Times, 16 Jan. 2025 There’s nothing unusual about China’s trying to spy on Americans or promote itself. —

Nicholas Kristof, The Mercury News, 25 Jan. 2025 See all Example Sentences for spy on