To pronounce the Irish name Oonagh, refer to the Irish Pronunciation Database (Foclóir Uí Dhuinnín) for accurate guidance. Familiarize yourself with the unique characteristics of the Irish alphabet and its pronunciation rules. Note the distinctive sounds of Irish vowels, such as the broad ú and slender á, and master the unique pronunciation of consonants like gh, ch, and th. Additionally, pay attention to the formation of Irish diphthongs, such as ea, ai, and ia, to achieve a harmonious pronunciation of Oonagh.