(mathematics) An operation of an algebraic structure playing a role analogous to multiplication.

(software) Software for controlling the allocation and use of various hardware resources (memory, CPU time, disk space, input and output devices) to tasks and remote terminals.

A company that sells package holidays.

(operations) The application of scientific methods and techniques to problems of decision making, especially in business management and government administration.

(finance) Negative operating income.

(UK) Alternative spelling of cooperate

A room in a hospital used for performing surgery (originally designed for operations in front of observers).

Operated, or activated, by placing coins in a slot.

A subcontractor who may be a commercial carrier, but most often provides capacity (trucks and drivers, with or without trailers or chassis) to either commercial or private carriers under a contract for services.

A room in a hospital used for performing surgical operations.