opera
1. opera pl of OPUS 2. op.era \'a:p-(*-)r*\ n [It, work, opera, fr. L, work, pains; akin to L oper-, opus] 1: a drama set to music and made up of vocal pieces with orchestral accompa niment and orchestral overtures and interludes 2: the score of a musical drama 3: the performance of an opera or a house where operas are performed