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The meaning of DIADEM is crown; specifically : a royal headband. How to use diadem in a sentence.

A diadem is also a jewelled ornament in the shape of a half crown, worn by women and placed over the forehead (in this sense, also called tiara). In some societies, it may be a wreath worn around the …

DIADEM definition: 1. a small crown (= a circular decoration for the head) with jewels in it 2. a small crown (= a…. Learn more.

DIADEM definition: a crown. See examples of diadem used in a sentence.

Define diadem. diadem synonyms, diadem pronunciation, diadem translation, English dictionary definition of diadem. n. 1. A crown worn as a sign of royalty. 2. Royal power or dignity. tr.v. …

Nov 27, 2025 · diadem (third-person singular simple present diadems, present participle diademming or diademing, simple past and past participle diademmed or diademed) To adorn with a diadem; to …

Definition of diadem noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

A diadem is a crown, or something on a crown. If you’ve just won the Miss America pageant, reach up your hand — that’s right — that rhinestone encrusted circlet on your head? That’s a diadem.

The diadem as symbol of royal power was also known in Judaea, where Messianic claimants like Simon of Peraea and Athronges the Shepherd (both immediately after the death of king Herod the Great) …