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.
- nitrogen dioxide
- nitrogen fixation
- nitrogen-fixer
- nitrogen-fixing
- nitrogenize
- nitrogen mustard
- nitrogen narcosis
- nitrogenous
- nitrogenous base
- nitrogenous base
- nitroglycerin
- nitroglycerine
- nitrohydrochloric acid
- nitromethane
- nitroparaffin
- nitrosamine
- nitrostarch
- nitrous
- nitrous acid
- nitrous oxide
- nitrox
- nits-and-lice
- nitty
- nitty-gritty
- nitwit