Oxford Dictionary English libretto noun noun BrE BrE//lɪˈbretəʊ// ; NAmE NAmE//lɪˈbretoʊ// (pl. librettos, libretti BrE BrE//lɪˈbretiː// ; NAmE NAmE//lɪˈbretiː// ) (music, from Italian) Describing music, Reading music Add to my wordlistjump to other results the words that are sung or spoken in an opera or a musical play The collection contains hundreds of Italian opera librettos. Wordfinderoperaaria, chorus, coloratura, diva, libretto, opera, orchestra pit, recitative, score, surtitles See related entries: Describing music, Reading music Word Originmid 18th cent.: from Italian, diminutive of libro ‘book’, from Latin liber.See libretto in the Oxford Advanced American DictionaryCheck pronunciation: libretto oxfordlearnersdictionaries.com