Look up hat in Wiktionary, the free dictionary.
A hat is an item of clothing worn on the head.
Hat or HAT may also refer to:
Film
- The Hat (film), a 1999 short film by Michèle Cournoyer
- The Hat, a 1912 film by Rollin S. Sturgeon
- The Hat, a 1963 film by Faith Hubley and John Hubley
Mathematics
- Hat matrix, a mathematical operation in statistics
- Hat operator, notation used in mathematics
- Hat function, alternate name for the triangular function
- A solution to the einstein problem, a shape nicknamed the "hat"
Organisations
- Handball Association of Thailand, governing body of handball in Thailand
- Hutchison Asia Telecom Group, a business division in telecommunications
- Hellenic Aeronautical Technologies, a Greek aeroplane manufacturer
- Helicopter Air Transport, a defunct American helicopter operator
People
- Jack McVitie (1932–1967), known as Jack "The Hat", English gangster
- Les Miles (born 1953), known as The Hat, American football coach
- Jan Åge Solstad (born 1969), known as Hat, former vocalist for the Norwegian black metal band Gorgoroth
Places
- Hať, Moravian-Silesian Region, Czech Republic
- Hat, Azerbaijan
- Hat, Nepal
- Hat, Berehove Raion, Ukraine
- Hat District, Al Mahrah Governorate, Yemen
- Hat Island (disambiguation)
Science
- Human African trypanosomiasis (sleeping sickness)
- HAt, symbol for hydrogen astatide
- Histone acetyltransferase, an enzyme class
- HAT medium, used in microbiology and immunology, for example in culturing hybridoma cells
- Hungarian-made Automated Telescope, used in the HATNet Project
Technology
- Hardware Attached on Top, expansion board format for the Raspberry Pi computer.
- Hashed array tree, in computer programming.
- Help authoring tool, software for "help" documents.
Other uses
- Handwoordeboek van die Afrikaanse Taal, an Afrikaans dictionary
- Haitian Creole language, with ISO 639-2 and 639-3 code
hat - Hat, slang for the caret (computing) (^)
- Hat, slang for the circumflex (ˆ)
- Hat (Davy Graham album), released in 1969
- Hat. (Mike Keneally album), released in 1992
- History Aptitude Test, an admissions test at Oxford University
- The Hat, a Southern California fast-food restaurant
- The Hat (book), a children's book by Tomi Ungerer
- "The Hat", an episode of Homicide: Life on the Street (season 4)
- Hi-hat (instrument), a standard part of a drum kit
See also
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