ACU

ACU is a three-letter acronym that may refer to:Abilene Christian University, a private Christian university located in Abilene, Texas.Achutupo Airport, an airport in Achutupo, Panama with the IATA airport code "ACU".American Conservative Union, a large political lobbying group in the United States.Army Combat Uniform, the combat uniform worn by the United States Army.Asian Clearing Union, an organization that settles international payments between member countries.Asian Currency Unit, a proposed unit of Association of Southeast Asian Nations currencyAssault Craft Unit, military units of the United States Navy that specialize in amphibious warfare.Association of Commonwealth Universities, an association that represents over 480 universities from Commonwealth countries.Australian Catholic University, Australia's only public, Catholic university.Auto-Cycle Union, an officially recognised motorcycle governing body of Great Britain.Automatic Client Upgrade, a process that will upgrade a computer workstation's Novell client.Armoured Command Unit, the key unit in the RTS game Supreme Commander.
See more at Wikipedia.org...

Açu (or Assu) is a municipality (município) in the state of Rio Grande do Norte in Brazil. The population in 2000 is 47,904, and the area is 1,292 km². This place name comes from the Tupi language.
See more at Wikipedia.org...

n. great, large, considerable, sizable, substantial, big

Abbreviation for automatic calling unit.

A device that enables equipment, such as computers and card dialers, to originate calls automatically over a telecommunications network.

Dollar deposits held in Singapore or other Asian centers.