rex

R1E1X8
/ˈɹɛks//ɹɛks/

noun

A king, particularly in ancient Rome.

Similar
CommonScrabble 10

Meanings

rex1

nounrex (plural rexes or (rare, sense 1 only) reges)

plural rexes · error unknown tag plural rare reges

  1. A king, particularly in ancient Rome.

    And though the sturdy patrician nobility had already gained ground, though the reges attempted gradually to enlarge the scope of their functions—all this does not change the elementary and fundamental character of the constitution, and this alone is essential.

    1902, Frederick Engels, translated by Ernest Untermann, “Gens and State in Rome”, in The Origin of the Family, Private Property and the State, Chicago, Ill.: Charles H[ope] Kerr & Company, →OCLC, page 155
  2. An animal which has a genetic recessive variation that causes the guard hairs to be very short or fully lacking.
verbrex (third-person singular simple present rexes, present participle rexing, simple past and past participle rexed)

present singular third person rexes · participle present rexing · participle past rexed · past rexed

  1. transitiveTo breed (an animal) to have this kind of hair.

Rex2

proper noun
  1. formalusually italicizedThe reigning king.
  2. A male given name from Latin coined in the nineteenth century from Latin rex "king," rarely given today.
  3. A popular name for a dog.

Synonyms & antonyms

proper nounAn unincorporated community in Clayton County, Georgia, United States.

proper nounA census-designated place in Robeson County, North Carolina, United States.

Similar

More synonyms by meaning

nouna male sovereign; ruler of a kingdom

Similar
kingmale monarch
Broader
sovereigncrowned headmonarchmanadult male

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

rex · noun, verb

  1. Latinrēx“king”
  2. Englishrex

From Latin rēx (“king”). Doublet of rajah and roy. Noun sense 2 originally referred to rabbits of the Belgian "castorrex" breed, so named because their fur was similar to that of beavers, and entered English around 1920.

Full word history & related roots →

Rex · proper noun

  1. Proto-Indo-European*h₃reǵ-
  2. Proto-Indo-European*h₃rḗǵs
  3. Proto-Italic*rēks
  4. Latinrēx
  5. EnglishRex

From Latin rēx (“king”). Doublet of rajah and roy.

Full word history & related roots →

Rhymes & wordplay

Rhymes with rex

All rhymes →

Sounds the same

Cite this entry
APA

rex. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/rex

MLA

“rex.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rex. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “rex,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/rex.

Source: rex on Wiktionary, CC BY-SA 4.0.