opus
[noun]
Synonyms: work, brainchild, composition, creation, oeuvre, piece, production

[TahlilGaran] English Synonym Dictionary ▲

o‧pus /ˈəʊpəs $ ˈoʊ-/ noun (plural opuses or opera /ˈɒpərə $ ˈɑː-/) [usually singular]
[Date: 1700-1800; Language: Latin; Origin: 'work']

1. a piece of music by a great musician, numbered according to when it was written:
Beethoven’s Opus 95

2. formal an important work of art by a famous writer, painter etc
⇒ magnum opus

[TahlilGaran] Dictionary of Contemporary English ▲