Ha

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Look up ha, HA, Ha, or hA in Wiktionary, the free dictionary.

Ha may mean

• Hectare (ha), SI (metric system) unit of surface area
• The ISO 639 alpha-2 language code for the widely-spoken African Hausa language
• An onomatopoeia for laughter.

The all-uppercase HA may refer to:

• The Highways Agency, an executive agency, part of the Department for Transport in the United Kingdom
• The Ha! comedy channel, one of the precursors to Comedy Central
• The British Rail pre-TOPS classification for twenty-four electric locomotives, later known as British Rail Class 71
• Haiti (FIPS 10-4 country code)
• Hawaiian Airlines (IATA airline designator)
• Hearst-Argyle, a media company in the United States
• Hells Angels, a motorcycle gang
• hemagglutinin or hemagglutination assay, in virology
• Heritage Auction Galleries, a prominent auction house, also known as Heritage Auctions.
• High availability
• Home agent, a computer router
• Home automation
• Homeowners association
• Hong Kong Housing Authority
• Hospital Authority, responsible for all public hospitals and institutes in Hong Kong
• Hospital Apprentice, a rank of the U.S. Navy
• Housing association
• HA postcode area, in Britain
• Hyaluronan, a molecule found in the body
• Hydroxylapatite, a mineral
• Head Automatica, an American powerpop band
• HA (video format)
• Headache (medical)
• Amateur radio call sign of Hungary

Ha can mean

• Ha (ethnic group), a people in Tanzania
• Hāʼ, a letter of Arabic alphabet (ﻩ)
• Kha, a letter of Cyrillic alphabet
• Ha (kana), romanisation of the Japanese kana は and ハ
• Ha, Bhutan
• Ha Gorge in Crete, Greece
• Ha (mythology), a minor deity in Egyptian mythology
• the former symbol for the element dubnium (first called hahnium)
• Hå, a municipality in Norway
• "Ha" (song), a single by Juvenile
• Ha (album), an album by Talvin Singh
• Ha-, Hebrew prefix the

hA can mean:

• Hectoampere, an SI unit of electric current (equal to 100 A)

[edit] See also

• Haha, disambiguation

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