jackman

Short definition from Wiktionary

Noun

1. 1
   A member of the pit crew responsible for lifting the car with a jack.
2. 2
   One wearing a jack; a horse soldier; a retainer.
3. 3
   A six-pointed playing piece in the game of jacks; a jackstone.

Proper noun

1. 1
   A surname.
2. 2
   A town in Somerset County, Maine, United States.