Shank/ʃæŋk/ Definition 1 of 4Pro Tip 1/2Physical Objects Refers to any long, thin part of a physical object, not just knives. Rotate the shank to tighten the handle. Pro Tip 2/2Not Always Metal 'Shank' isn't limited to metal objects and can refer to wood or plastic parts too. The broom's wooden shank snapped.