plural of aid station

(Philippines) a street sweeper

financial aid given by developed countries to promote the development of underdeveloped or developing countries.

(historical) A sovereign court in Ancien Régime France, dealing with customs and other matters of public finance.

plural of Court of Aids

(US, economics) Money provided by the government to school districts that have lost property tax revenue due to the presence of tax-exempt Federal property, or have experienced increased expenditure due to the enrollment of federally connected children, including children living on Native American lands.

plural of penetration aid

(military) Any device or tactic used to increase an ICBM warhead's chances of penetrating a target's defenses.

(biology, sociology) The state of cooperation, as opposed to competition, as a factor in evolution and social development.

plural of metro aide