The words of an opera can be described using various synonyms, such as libretto, lyrics, libretti, librettist, libretti. A libretto refers to the text or words of an opera, while lyrics typically describe the vocal portions of a song within an opera. The term librettist is used to describe the person who writes the libretto, and libretti is often used to refer to multiple librettos. The words of an opera are crucial to the storytelling and emotional impact of the performance, and selecting the right words is essential for conveying the intended message and evoking the desired response from the audience.