supplement), containing vitamins A, C, E and selenium Adverse childhood experiences Addenbrooke's Cognitive Examination Computing ACE (compressed file format) Ace (editor), a code editor written in JavaScript ACE (editor), a desktop-based collaborative editor ACE (genomic file format) ACES (computational chemistry), a software package Access Control Entry, part of an access control list Acehnese language (ISO 639 code) Adaptive Communication Environment, an open-source network-programming framework Advanced Computerized Execution System, a stock-trading system Advanced Computing Environment, an early 1990s initiative for commodity computing hardware Adverse Childhood Experiences Study Agent-based computational economics Arbitrary code execution ASCII Compatible Encoding, a prefix related to internationalized domain names Asynchronous Compute Engine, a component defined in AMD's Graphics Core Next for ATI-type products Automatic Computing Engine, a 1952 British computer Automatic Content Extraction, an information-extraction technology-development program Jupiter Ace, a 1980s British computer Other uses in science and technology Ace (quark model), an obsolete term for quark ACE (cable system), a submarine communications cable Academy Color Encoding System (ACES), a proposed color image encoding ACE experiment, the Antiproton Cell Experiment hosted at CERN Accumulated cyclone energy Aggregative Contingent Estimation, a program of the Intelligence Advanced Research Projects Agency Alternating conditional expectations, an algorithm in nonparametric regression. Alternative Chassis Engineering, a UK bus manufacturer, builder of the ACE Cougar Attempto Controlled English, a controlled natural language from the University of Zurich Sports Terminology Ace (baseball), a team's best starting pitcher Ace (golf), a hole in one Ace (pickleball), a serve that is not returned by the receiver Ace (tennis), a point won by the server without contest Ace formation, in American football Teams Alaska Aces (ECHL), an American ice hockey team Alaska Aces (PBA), a Philippine basketball team Alexandria Aces, a defunct American baseball team in Louisiana Asheville Aces, a defunct American ice hockey team Belle Vue Aces, an English motorcycle speedway team Cornwall Aces, a Canadian ice hockey team playing 1993-1996 Dallas Aces, the world's first professional bridge team Evansville Purple Aces, a college team of the University of Evansville Las Vegas Aces, an American basketball team Lower Merion High School Aces, the athletic teams at the school in suburban Philadelphia Melbourne Aces, an Australian baseball team founded 2009 Northeast League Aces, a Canadian-American baseball team Quebec Aces, a Canadian ice hockey team playing 1928-1971 Reno Aces, an American baseball team in Nevada Victoria Aces, an Australian baseball team founded 1934 Transportation Automotive Ace (1913 automobile), a