regnum

reg·num
R1E1G2N1U1M3
US, UK/ˈɹɛɡnəm/

noun

A rank in the classification of organisms, below dominium and above divisio.

Similar
kingdom
OriginLatin rēgnum →
UncommonScrabble 9
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Meanings

nounregnum (plural regnums or regna)

plural regnums · plural regna

  1. biologyA rank in the classification of organisms, below dominium and above divisio.

    Synonyms: kingdom

  2. A badge of royalty, especially the early form of the pope's tiara.

Synonyms & antonyms

nounA rank in the classification of organisms, below dominium and above divisio.

Similar
kingdom
Also see
kingdom

Origin

  1. Latinrēgnum“kingdom”
  2. Englishregnum

From Latin rēgnum (“kingdom”). Doublet of reign.

More words from Latin

Full word history & related roots →

Rhymes & wordplay

Rhymes with regnum

interregnum
All rhymes →

Anagrams

munger
Cite this entry
APA

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

MLA

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

Chicago

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

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