machine vs running board

machine and running board both are nouns.

Word	Noun	Adjective	Verb	Adverb
machine	Yes	No	Yes	No
running board	Yes	No	No	No

machine (noun)	running board (noun)
any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks	a narrow footboard serving as a step beneath the doors of some old cars
a motor vehicle with four wheels; usually propelled by an internal combustion engine
a device for overcoming resistance at one point by applying force at some other point
a group that controls the activities of a political party
an intricate organization that accomplishes its goals efficiently
an efficient person

machine (verb)	running board (verb)
make by machinery
turn, shape, mold, or otherwise finish by machinery