- a programming language particularly suited to real-time applications: developed for use by the U.S. Department of Defense.
- a city in central Oklahoma.
- Adah.
- a female given name: from a Germanic word meaning “noble.”
- adenosine deaminase.
- American Dental Association.
- American Diabetes Association.
- Americans for Democratic Action.
- a federal law prohibiting discrimination against people with physical or mental impairments and guaranteeing access to employment opportunities and access to state and local government programs and services, signed by President George H. W. Bush in 1990.
- American Dental Association.
- American Diabetes Association.
- Americans for Democratic Action.
- a high-level computer programming language designed for dealing with real-time processing problems: used for military and other systems