AI, A.I., Ai, or ai may refer to:
Air pollution is the introduction of harmful substances including particulates and biological molecules into Earth's atmosphere.
The Airbus A380 is a double-deck, wide-body, four-engine jet airliner manufactured by European Union manufacturer Airbus.
The Airbus A350 XWB is a family of long-range, twin-engine wide-body jet airliners developed by European aircraft manufacturer Airbus.
Aishwarya Rai (born 1 November 1973), also known by her married name Aishwarya Rai Bachchan, is an Indian actress, model and the winner of the Miss World 1994 pageant.
The Airbus A330 is a medium- to long-range wide-body twin-engine jet airliner made by Airbus, a division of Airbus Group.
Air conditioning (often referred to as AC, A.C., or A/C) is the process of removing heat from a confined space, thus cooling the air, and removing humidity.
Airbus SAS (/ˈɛərbʌs/, French: [ɛʁbys], German: [ˈɛːɐbʊs], Spanish: [ˈeirβus]) is a division of the multinational Airbus Group SE that manufactures civil aircraft.
Aizuwakamatsu (会津若松市, Aizuwakamatsu-shi) is a city in Fukushima Prefecture, in northern Honshu, Japan.
An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft.