spy on

verb

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

Browse Nearby Words

spymaster
spy on
spy out
See all Nearby Words

Cite this Entry

“Spy on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spy%20on. Accessed 6 Mar. 2026.

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