Opus

Opus is a Latin word for work. The plural of opus is opera. It is used in many fields, notably in architecture and in music.

• In music, pieces of some composers' music are given opus numbers which generally run either in order of composition or in order of publication.\n*In architecture, it specifically describes a technique or a method or a style of connecting building elements, following the studies on Roman architecture. Roman building styles are commonly classified as:\n**Opus incertum\n**Opus testaceum (also called Opus latericium)\n**Opus caementicium \n**Opus reticulatum (also called Opus certum)\n**Opus siliceum\n**Opus quadratum\n**Opus vittatum\n**Opus mixtum\n**Opus spicatum\n**Opus alexandrinum\n* Opus Dei (God's work) is a conservative Roman Catholic organization founded in 1928.\n*Opus the penguin is a character in various comic strips by Berkeley Breathed.\n*Opus is a comic strip by Berkeley Breathed.\n*A "magnum opus" (or "opus magnum") is a great work or, more commonly, the greatest work of a person. Magnum is Latin for great.