The Combine, the system of oppression in One Flew Over the Cuckoo's Nest

The act of forming a trade union

The Combine, an alien regime from Half-Life 2

A type of artwork where objects are combined, invented by Robert Rauschenberg

A combine harvester, used in agriculture

Combine, Texas

A diplexer (sometimes called a combiner), a device that combines radio frequency outputs

A combine car, a type of railway car

The NFL Combine, a short training camp used by NFL team scouts

A corporation, syndicate, or zaibatsu: all terms for vast, monopolistic commercial institutions