(UK) Alternative spelling of cooperate

(mathematics, physics) A differential operator,denoted ∆ and defined on ℝⁿ as 𝛥=∑ᵢ₌₁ⁿ(∂²)/(∂x_i²), used in the modeling of wave propagation, heat flow and many other applications.

A person who operates a telephone switchboard. / A person who provides assistance in establishing a connection, or who provides information or takes messages via the telephone.

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

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.

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.

(mathematics) The sequence in which the various operations in a mathematical expression are to be evaluated.

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

A showing of something — such as a variable, term, or object — in terms of the specific process or set of validation tests used to determine its presence and quantity.