Category: Ambiguous three-letter acronyms The Adirondack State Park, also known as the Adirondack Park is a large state park in northeast New York. ... The federal Administrative Procedure Act (APA) of 1946 governs the way in which administrative agencies of the United States federal government may propose and establish regulations. ... An Amateur Press Association or APA is a group of people who produce individual pages or magazines that are sent to a Central Mailer for collation and distribution to all members of the group. ... The American Philological Association, founded in 1869, is a non-profit North American scholarly organization devoted to classical studies in language, literature, and history, especially of ancient Greek and Roman civilizations. ... The American Philosophical Association is the main professional organization for philosophers in the United States. ... The American Planning Association (APA) is a professional organization representing the field of city and regional planning in the United States. ... With roots dating back to the National Pool League (founded in 1979), the American Poolplayers Association (APA) was founded in 1981. ... The American Protective Association was an American anti-Catholic, anti-immigrant secret society (similar to the Know Nothings) that was founded in Iowa in March of 1886 by Attorney Henry F. Bowers and six friends. ... The American Psychiatric Association is a professional organization of psychiatrists whose members are American and international physicians who are trained in psychiatry. ... The American Psychological Association (APA) is a professional organization representing psychology in the US. It has around 150,000 members and an annual budget of around $70m. ... The Publication Manual of the American Psychological Association, Fifth Edition APA style is a widely accepted format for writing research papers, particularly for social science manuscripts and theses. ... The Amercian Psychopathological Assocation (APPA) was founded in 1910, and according to its website, is devoted to the scientific investigation of disordered human behavior, and its biological and psychosocial substrates. ... Antagonist Perpetrated Aggression is a martial art combat system developed by Chris Mar in the 1970s. ... The Publication Manual of the American Psychological Association, Fifth Edition APA style is a widely accepted format for writing research papers, particularly for social science manuscripts and theses. ... The Apache Railway (AAR reporting mark APA) is an Arizona shortline railroad that operates from a connection with the BNSF Railway (AAR reporting mark BNSF) at Holbrook to the Abitibi paper mill at Snowflake, Arizona, 38 miles. ... The ARCAM Private Army (APA) is a fictional organization in the Spriggan manga. ... An Asian American is a person of Asian ancestry or origin who was born in or is an immigrant to the United States. ... The Australian Progressive Alliance (APA) was a minor liberal party in Australia. ... Ports on the Apple iBook (Early 2003) In computing, a port (derived from seaport) is a connection through which data is sent and received. ... In the dramatised world of professional wrestling, the Acolyte Protection Agency (commonly known as the APA) were a stable in World Wrestling Entertainment (WWE) that included Faarooq and Bradshaw, a tag-team called the Acolytes. ... Southern Athabaskan (also Apachean) refers to members of the Athabaskan language family (including Navajo) spoken in the Northern American Southwest. ... Americanist phonetic notation (also Americanist Phonetic Alphabet, American Phonetic Alphabet, sometimes abbreviated APA) is a system of phonetic notation originally developed by European and Euro-American anthropologists and language scientists (former Neo-grammarians) for the phonetic and phonemic transcription of Native American and European languages. ... Located in Hong Kong in the district of Wan Chai, the Hong Kong Academy of Performing Arts is both an academic institution and a venue for performances ranging from amateur dramatics through to international professional appearances. ... To meet Wikipedias quality standards, this article or section may require cleanup. ...