AS, As, A/S or similar may refer to:
Association football, more commonly known as football or soccer, is a team sport played between two teams of eleven players with a spherical ball.
Assassin's Creed is a franchise centered on an action-adventure video-game series developed by Ubisoft.
John F. Kennedy, the 35th President of the United States, was assassinated at 12:30 p.m. Central Standard Time (18:30 UTC) on Friday, November 22, 1963, in Dealey Plaza in Dallas, Texas.
Asperger syndrome (AS), also known as Asperger's, is a developmental disorder characterized by significant difficulties in social interaction and nonverbal communication, along with restricted and repetitive patterns of behavior and interests.
Ashkenazi Jews, also known as Ashkenazic Jews or simply Ashkenazim (Hebrew: אַשְׁכְּנַזִּים, Ashkenazi Hebrew pronunciation: [ˌaʃkəˈnazim], singular: [ˌaʃkəˈnazi], Modern Hebrew: [aʃkenaˈzim, aʃkenaˈzi]; also יְהוּדֵי אַשְׁכֲּנַז Y'hudey Ashkenaz), are a Jewish diaspora population who coalesced as a distinct community in the Holy Roman Empire around the end of the first millennium.
Aspirin, also known as acetylsalicylic acid (ASA), is a medication used to treat pain, fever, and inflammation.
Asthma is a common long term inflammatory disease of the airways of the lungs. It is characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm.
Astronomy (from Greek: αστρονομία) is a natural science that studies celestial objects and phenomena. It applies mathematics, physics, and chemistry, in an effort to explain the origin of those objects and phenomena and their evolution.
Astrology is the study of the movements and relative positions of celestial objects as a means for divining information about human affairs and terrestrial events.