Standard Lemma guide

diadem

noun · verb · 6 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • dī'ədem
  • /ˈdaɪ.əˌdɛm/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -aɪədɛm
  • CMU ARPABET: D AY1 AH0 D EH2 M Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

An ornamental headband worn as a badge of royalty.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A crown.

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

Regal power; sovereignty; empire—considered as symbolized by the crown.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

An arch rising from the rim of a crown (rarely also of a coronet), and uniting with others over its centre.

Definition source: English Wiktionary via Wiktextract

Topics: government, heraldry, hobbies, lifestyle, monarchy, nobility, politics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

To adorn with a diadem; to crown.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: undiadem

6

noun

Meaning 6

an ornamental jeweled headdress signifying sovereignty

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: crown

Antonyms: none provided

Broader terms: crown jewels, jewelled headdress, jeweled headdress

Narrower terms: coronet

History

Etymology

From Middle English diademe, dyademe, from Old French diademe, from Latin diadēma, from Ancient Greek διάδημα (diádēma, “band, especially worn around a tiara”), from διαδέω (diadéō, “bind around”).

Across languages

Translations

50 source translations are retained for this English entry.

  • Arabic: ديادم — ornamental headband
  • Bulgarian: диадема (diadema) — ornamental headband
  • Catalan: diadema — ornamental headband
  • Danish: diadem — ornamental headband
  • Dutch: diadeem — ornamental headband
  • Esperanto: diademo — ornamental headband
  • Estonian: diadeem — ornamental headband
  • Finnish: diadeemi — ornamental headband
  • French: diadème — ornamental headband
  • Georgian: დიადემა (diadema) — ornamental headband
  • German: Diadem — ornamental headband
  • Ancient Greek: ἄμπυξ (ámpux) — ornamental headband
  • Hebrew: עֲטָרָה ('atará) — ornamental headband
  • Hungarian: fejék — ornamental headband
  • Icelandic: ennishlað — ornamental headband
  • Icelandic: höfuðdjásn — ornamental headband
  • Irish: mionn (ríoga) — ornamental headband
  • Italian: diadema — ornamental headband
  • Japanese: ダイアデム — ornamental headband
  • Malay: bogam — ornamental headband
  • Persian: دیهیم (deyhim) — ornamental headband
  • Middle Persian: dydym (dīdēm) — ornamental headband
  • Polish: diadem — ornamental headband
  • Portuguese: diadema — ornamental headband
  • Romanian: diademă — ornamental headband
  • Russian: диаде́ма (diadéma) — ornamental headband
  • Sicilian: taddema — ornamental headband
  • Sicilian: diadima — ornamental headband
  • Spanish: diadema — ornamental headband
  • Swedish: diadem — ornamental headband
  • Tagalog: diyadema — ornamental headband
  • Ukrainian: діаде́ма (diadéma) — ornamental headband
  • Yiddish: דיאַדעמע (dyademe) — ornamental headband
  • Bulgarian: корона (korona) — crown
  • Finnish: kruunu — crown
  • French: couronne — crown
  • French: diadème — crown
  • Ancient Greek: διάδημα (diádēma) — crown
  • Irish: mionn (ríoga) — crown
  • Italian: corona — crown
  • Italian: diadema — crown
  • Malay: mahkota — crown
  • Persian: دیهیم — crown
  • Middle Persian: 𐭣𐭩𐭣𐭩𐭬𐭩 (dydymy) — crown
  • Portuguese: diadema — crown
  • Sicilian: cruna — crown
  • Sicilian: diadima — crown
  • Swedish: krona — crown
  • Finnish: kruunu — regal power
  • French: couronne — regal power