Ha

From Wikipedia, the free encyclopedia

See also: Haha

HA, Ha, ha, and hA can refer to various things, depending on case.

The all-uppercase HA may refer to:

• 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 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 club
• hemagglutination assay, in virology
• high availability, as in a high-availability cluster
• home automation
• homeowners association
• HA postal area
• Hyaluronan

Ha can mean:

• Ha, a people in Tanzania
• Hāʼ, a letter of Arabic alphabet (ﻩ)
• Kha, a letter of Cyrillic alphabet
• Romanisation of the Japanese kana は and ハ
• Ha, Bhutan
• Ha (mythology), a minor deity in Egyptian mythology
• the former symbol for chemical element 105, first called hahnium (Ha), later given the systematic name, unnilpentium, and now called dubnium (Db)
• the Hartmann number, in physics
• an interjection used to express joy, surprise, or laughter
• Ha, a book by Osamu Dazai
• a common prefix in Hebrew indicating the definite article.

ha can mean:

• hectare (ha), unit of surface area. 1 hectare = 10 000 m²
• the ISO 639 alpha-2 language code for the Hausa language

hA can mean:

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