Standard Lemma guide

Diocletian

adj · name · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˌdaɪ.əˈkliːʃən/
  • US: Recorded audio is listed in the source snapshot.

1

adj

Meaning 1

Of or relating to the Roman emperor Diocletian.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

Roman cognomen, particularly borne by the Roman emperor Gaius Aurelius Valerius Diocletianus (245-313).

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Roman Emperor who when faced with military problems decided in 286 to divide the Roman Empire between himself in the east and Maximian in the west; he initiated the last persecution of the Christians in 303 (245-313)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Gaius Aurelius Valerius Diocletian

Antonyms: none provided

Broader terms: Roman Emperor, Emperor of Rome

History

Etymology

From Latin Dioclētiānus, Latinate form of Ancient Greek Διοκλῆς (Dioklês). The Roman emperor was named so after his home town of Dioclea in Illyricum.

Across languages

Translations

21 source translations are retained for this English entry.

  • Armenian: Դիոկղետիանոս (Diokġetianos) — Roman cognomen
  • Catalan: Dioclecià — Roman cognomen
  • Coptic: ⲇⲓⲟⲕⲗⲏϯⲁⲛⲟⲥ (dioklētianos) — Roman cognomen
  • French: Dioclétien — Roman cognomen
  • Galician: Diocleciano — Roman cognomen
  • Georgian: დიოკლეტიანე (dioḳleṭiane) — Roman cognomen
  • German: Diokletian — Roman cognomen
  • Greek: Διοκλητιανός (Dioklitianós) — Roman cognomen
  • Ancient Greek: Διοκλῆς (Dioklês) — Roman cognomen
  • Ancient Greek: Διοκλητιανός (Dioklētianós) — Roman cognomen
  • Hungarian: Diocletianus — Roman cognomen
  • Indonesian: Diocletianus — Roman cognomen
  • Italian: Diocleziano — Roman cognomen
  • Latin: Dioclētiānus — Roman cognomen
  • Malay: Diocletian — Roman cognomen
  • Portuguese: Diocleciano — Roman cognomen
  • Romanian: Dioclețian — Roman cognomen
  • Russian: Диоклетиан (Diokletian) — Roman cognomen
  • Sicilian: Diuclezzianu — Roman cognomen
  • Spanish: Diocleciano — Roman cognomen
  • Turkish: Diocletianus — Roman cognomen
Real reading context

Diocletian in complete knowledge articles