ˈōpəs, chiefly Brit ˈäp- noun
( plural opera ˈōpərə, ˈäp- ; also opuses )
Etymology: Latin oper- opus — more at operate
: work: as
a. : a musical composition or set of compositions usually numbered in the order of its issue — abbr. op
b. : embroidery — used in combination; see opus anglicanum