Emperor
Rex
Rex noun - A male sovereign; ruler of a kingdom.
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Synonyms for Rex
Emperor and rex are semantically related in ruler topic. You can use "Emperor" instead a noun "Rex", if it concerns topics such as historically.
Mutual synonyms
Both words in one sentence
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Oh, and place an Emperor Penguin in the same pen as a Tyrannosaurus rex, and guess who eats who.
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Aguirre, the Wrath of God contains examples of: Adipose Rex: Fat, gluttonous and lazy Guzmán is cynically made leader of the expedition and Emperor of El Dorado.
Source: Film / Aguirre, the Wrath of God - Reptilis Rex: The story of the deposed emperor of a race of Lizard Folk forced to work a menial job in a human society that despises his kind.
Source: Embellished Webcomics
Cite this Source
Rex and Emperor. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/emperor/rex
Emperor & Rex. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/emperor/rex>.
Rex or Emperor. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/emperor/rex.
Google Ngram Viewer shows how "emperor" and "rex" have occurred on timeline