Spier
Spook
Spook noun - A person who tries secretly to obtain information for one country in the territory of another usually unfriendly country.
Cite this Source
Spook and Spier. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/spier/spook
Spier & Spook. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/spier/spook>.
Spook or Spier. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/spier/spook.
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