Jack

Jack most commonly refers to:

• Jack (given name), a male given name (including a list of people and fictional characters with the name)
• A common diminutive nickname for John (given name)
• Jack (connector), an electrical connector
• Jack (device), a device used to lift heavy objects

Jack may also refer to:

Computers

• Jack (CAD software), a 3-D ergonomics and human factors CAD package
• JACK Intelligent Agents, a multi-agent platform written in Java
• JACK Audio Connection Kit, a computer sound server
• Jack (human modeling), a human modeling and simulation system

Connectors

• Jack (connector), an electrical connector
• Jack plug, also known as a TRS or phone connector, a common audio connector

Games

• Jack (playing card), the lowest face card in a deck of playing cards
• Jack, a playing piece for the children's game of knucklebones or jacks
• Jack, a target ball used in games such as bowls

Films

• Jack (1996 film), a 1996 film starring Robin Williams
• Jack (2004 film), a 2004 film starring Anton Yelchin and Stockard Channing
• Jack: The Last Kennedy Film, a 1993 American TV documentary directed by Nick Davis
• Jack (2013 film), a television film starring Rick Roberts and Sook-Yin Lee

Music

• Jack (band), a British independent pop group signed to the Too Pure label
• Jack (album), a 2010 studio album by John Farnham
• "The Jack", a song by AC/DC originally on the 1975 album T.N.T.

Flags

• Maritime flag, flown by warships
• Jackstaff, a small vertical spar (pole) in the bow of a ship, on which a flag is flown
• Union Jack, the flag of the United Kingdom

Flora and fauna

Fish

• Carangidae, generally
  • Almaco jack
  • Amberjack
  • Bar jack
  • Black jack (fish)
  • Crevalle jack
  • Giant trevally or ronin jack
  • Jack mackerel
  • Leather jack
  • Yellow jack
• Coho salmon, males called "jacks"
• Esox (northern pike), young called "jacks"
• "Jack Fish", a name for Northern pike, in Saskatchewan, Canada

Plants

• Jack (tree) (Mangifera caesia), a relative of the mango
• Jackfruit, a species of tree native to the East Indies

Tools and devices

• Jack (device), a device used to lift heavy objects
• Jack plane, a tool for smoothing wood
• Jackhammer, a portable percussive drill
• Pocket knife, a folding knife called a Jackknife
• Roasting jack, a device for turning a spit

Other uses

• Jack, Alabama, an unincorporated community in Coffee County, Alabama
• Jack, an archaic unit of volume equal to two fluid ounces
• Jack (webcomic), an anthropomorphic webcomic
• Monterey Jack, a variety of cheese
• Jack in the Green, a traditional figure in British May Day celebrations
• Jack Daniel's, a brand of whiskey
• Jack FM, a radio format and brand
• Jack of plate, a type of armour
• Jack (mascot), the mascot of Jack in the Box restaurants
• Oxide jacking, rust bursting
• 'Jack', the Allied codename of the Japanese Mitsubishi J2M fighter of World War II
• Jack TV, a cable network in the Philippines

See also

• Jacks (disambiguation)
• Jack of all trades (disambiguation)
• All pages with titles beginning with Jack
• All pages with titles containing Jack
• Crackerjack (disambiguation)
• Happy Jack (disambiguation)
• Jack-in-the-box (disambiguation)
• Jack of all trades (disambiguation)
• You Don't Know Jack (disambiguation)
• Jacking, a dance technique and music form that first became popular in the late 1980s