king·bolt 
(kĭngbōlt′)
(kĭngbōlt′)n.
A vertical bolt that joins the body of a wagon or other vehicle to its front axle and usually acts as a pivot. Also called kingpin.
- conversional
- conversionary
- conversion disorder
- conversion factor
- conversion reaction
- Converso
- convert
- convertaplane
- convertaplane
- converted rice
- converter
- convertibility
- convertible
- convertible security
- convertibly
- convertiplane
- convertor
- convertor
- convex
- convexity
- convexly
- convexo-concave
- convexo-convex
- convey
- conveyable