Meaning of “opera” - Learner’s Dictionary

opera

noun [ C, U ] uk us /ˈɒpə/

A2 a musical play in which most of the words are sung:

to go to the opera
opera singers
an opera house (= building for opera)
operatic uk us /ˌɒpərˈætɪk/ adjective

relating to opera:

an operatic society

(Definition of “opera” from the Cambridge Learner’s Dictionary © Cambridge University Press)