| A&H | Acura and Honda 
| Others |
| A/H | Ampere/Hour
| Others |
| A/H | Antwep /Hamburg Range
| Others |
| AH | Abdominal Hysterectomy
| Others |
| AH | Abg Haji
| Others |
| AH | Absolute Humidity
| Others |
| AH | Ace of Hearts
| Others |
| AH | Achievement Hunter
| Others |
| AH | Acronym Hell
| Others |
| AH | Active Hub
| Others |
| AH | Ad Honorem
| Others |
| AH | Adaptive Hypermedia
| Others |
| AH | Addison Hospital
| Others |
| AH | Address Handling
| Others |
| AH | Address Header
| Others |
| AH | Adolf Hitler
| Others |
| AH | Adrian Hawkins
| Others |
| AH | Affordable Housing
| Others |
| AH | Afghan House
| Others |
| AH | After Hijra
| Others |
| AH | After Hijrah
| Others |
| AH | After Hijrat
| Others |
| AH | After Hours
| Others |
| AH | After Humanity
| Others |
| AH | After The Headache
| Others |
| AH | Agricultural Holding
| Others |
| AH | Aharon HaLevi
| Others |
| AH | Airbus Helicopters
| Others |
| AH | Alamo Heights
| Others |
| AH | Albert Heijn
| Others |
| AH | Albert Hein
| Others |
| AH | Alert Height
| Others |
| AH | Alert Height (For Category III Operations)
| Others |
| AH | Alexander Hamilton
| Others |
| AH | Alf Hobo
| Others |
| AH | Alfried Hagedorn
| Others |
| AH | algebra AH
| Others |
| AH | algebras AH
| Others |
| AH | Alhamdulillah (Praise to god)
| Others |
| AH | All Hemispheres
| Others |
| AH | Alpha Industries
| Others |
| AH | Alter Herr
| Others |
| AH | Alternate History
| Others |
| AH | Amateur Hours
| Others |
| AH | American History
| Others |
| AH | American Hotel
| Others |
| AH | Americana House
| Others |
| AH | Amiable Head
| Others |
| AH | Amp hours
| Others |
| AH | Ampere Hour
| Others |
| AH | Ampere Hours
| Others |
| AH | Amperes hour
| Others |
| AH | Amps High
| Others |
| AH | Ancient History
| Others |
| AH | And Have
| Others |
| AH | Andalusian Horse
| Others |
| AH | Andy Hilfiger
| Others |
| AH | Angel Hair
| Others |
| AH | Angry Hump
| Others |
| AH | Animal Health
| Others |
| AH | Animal Herders
| Others |
| AH | Anno Hegirae
| Others |
| AH | Another Hundred
| Others |
| AH | Answer Hello
| Others |
| AH | Ant Hell
| Others |
| AH | Anti-Halation
| Others |
| AH | Apocalyptic Harbinger
| Others |
| AH | Application Header
| Others |
| AH | Approximately Homogeneous
| Others |
| AH | Archaeologia Hungarica, Budapesta
| Others |
| AH | Arithmetical Hierarchy
| Others |
| AH | Art & Humanities
| Others |
| AH | Art History
| Others |
| AH | Arterial Hypertension
| Others |
| AH | Artificial Harmonic
| Others |
| AH | Aryl Hydrocarbon
| Others |
| AH | Ascaris Haemoglobin
| Others |
| AH | Asian Highway
| Others |
| AH | Asteroid Hunt
| Others |
| AH | Asthma Health
| Others |
| AH | Attack Helicopter
| Others |
| AH | Attribute Hidden
| Others |
| AH | Auburn Hills
| Others |
| AH | Auction House
| Others |
| AH | Audit Header
| Others |
| AH | Auditory Hallucinations
| Others |
| AH | Augustus Hamilton
| Others |
| AH | Aunts Husband
| Others |
| AH | Austria Hungary
| Others |
| AH | Authenticated Header
| Others |
| AH | Authentication Header
| Others |
| AH | Available and Happy
| Others |
| AH | Available Happy
| Others |
| AH | Away Home
| Others |
| AH | Axes Handle
| Others |
| AH | Hospital Ship (Auxiliary, Hospital)
| Others |
| AH | The American Herbal
| Others |
| AH | The Augustinian Hypothesis
| Others |
| Ah | Used to fill gaps in speaking, when you are searching for words.
| Others |