AIS
AIS is a three-letter abbreviation with multiple meanings, as described below:
- academic intervention services
- Alien Investigation Service, a Top Secret Organisation in Austria.
- Account Information Security, a VISA security program intended to protect the account information of credit card holders
- Accounting Information System
- Advanced Info Service, a Thai mobile phone operator
- Aeronautical Information Service
- Alarm indication signal, a signal transmitted by a system that is part of a communications link to let the receiver know that some part of the link has failed. Some types of AIS signals are:
- Alltel Information Services
- Amity International School
- Androgen insensitivity syndrome
- Application Interface Specification, a technical specification defined by the Service Availability Forum
- Artificial immune system
- Association for Information Systems
- Australian Information Service
- Australian Institute of Sport
- automated information system
- Automated Intercept System, a Telecommunications system that typically handles the automated error messages in the public Telephone system (e.g. "The number you have reached has been disconnected...")
- Automatic Identification System, a navigation and surveillance system capable of providing information about a ship to others and to coastal authorities automatically
- Islamic Salvation Army (in French), the former military wing of the Islamic Salvation Front in Algeria
Ais as a word is used as follows:
- An ais is a vertical board in the service end of a jeu quarré real tennis court.
- The Ais were a Native American tribe that lived on the east coast of Florida.