The time interval between the instant of the occurrence of a specified input condition to a system and the instant of completion of a specified operation.

(mathematics) An operation, written using the symbol +, that produces the sum of two operands

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

(psychology) A technique of behavior modification through positive and negative reinforcement and positive and negative punishment.

(military) That portion of a theater of war] which an army passes over in attaining its object.

(finance) Negative operating income.

(UK) Alternative spelling of cooperate

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

(business, accounting) Any expense incurred in running a business, such as sales and administration, as opposed to production.

(business) The business cycle from startup of operations to the profit; from obtaining the raw material, through designing and production, to the distribution and profits.