tiaranounfeminine/tiˈaɾɐ/mediumti·a·raPortuguesEnglishEspanolFrancaisDefinitionAn ornamental crown or diadem, typically worn by women, especially for formal occasions.The princess wore a diamond tiara for the ceremony.The tiara was the most striking element of her wedding dress.syndiademcrownCommon collocationsdiamond tiarawedding tiaraprincess tiaraEtymologyDo latim 'tiara', do grego 'tiara', espécie de toucado alto.