Jack
pn//d͡ʒæk//Jakob, Jacob, Jack, domkraft, jack, skärsax
A en given name derived from a pet form of the name John. Occasionally a diminutive of other given names such as Jackson, Jacob, Jacqueline or Jonathan.
A mechanical device used to raise and (temporarily) support a heavy object, now especially to lift one side of a motor vehicle when (e.g.) changing a tyre. [from 17th c.]
(electronics) A switch for a jack plug, a jackknife switch; (more generally) a socket used to connect a device to a circuit, network etc. [from 19th c.]
(games) A small, six-pointed playing piece used in the game of jacks. [from 19th c.]
A non-tool object or thing.
A pike, especially when young. [from 16th c.]
(glassblowing) a tool used in manual production of glass objects (like bottles or wine glasses).