(accounting) A method of inventory accounting that values items withdrawn from inventory at the cost of the oldest item assumed to remain in inventory.

(operations) A service policy in which the first to arrive for service receives the service first.

Alternative spelling of first-come-first-served

(idiomatic) People will be dealt with in the order they arrive.

Describing a process of dealing with people using the principle "first come, first served".

An Indian settlement or band. / (Canada, usually in the plural) The indigenous peoples of Canada (not including Inuit or Metis). / (Canada, less common) The indigenous peoples of any country or region.

(usually in the plural) Of or pertaining to a First Nation or the First Nations.

A statement that is not proved but rather supposed or held as obvious, forming together with other such statements the basis of a system of statements obtained from them by inference; an axiom.

A basic, foundational proposition or assumption that cannot be deduced from any other proposition or assumption.

plural of first name