Know and Spy

Know

Know verb - To have a practical understanding of.

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Spy and know are semantically related. In some cases you can use "Spy" instead a verb "Know".

Nearby Words: knowing, known

Spy verb - To make note of (something) through the use of one's eyes.

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Know and spy are semantically related. Sometimes you can use "Know" instead a verb "Spy".

Nearby Word: spying

thanks	know thanks	spy thanks
someone	know someone	spy someone
time	know time	spy time
way	know way	spy way
Other words: information, nothing, anyone, english, secrets.

The main characters of Animorphs cause this when they morph flies to spy on the aliens that know every fly could be an enemy spy.

Source: Fly Crazy
When the guide gets confused, he concludes she's no spy, because a spy would've pretended to know the woman.

Source: Bluff the Impostor
Unlike when Sam spied on Danny, Danny actually had a legitimate reason to spy on them: they knew nothing about Gregor so he may as well be a spy, he just didn't know he was jealous at the time.

Source: Unintentionally Unsympathetic

Cite this Source

Spy and Know. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/know/spy

Know & Spy. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/know/spy>.

Spy or Know. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/know/spy.

Google Ngram Viewer shows how "know" and "spy" have occurred on timeline