machine vs cowl

machine and cowl both are nouns.

Word	Noun	Adjective	Verb	Adverb
machine	Yes	No	Yes	No
cowl	Yes	No	Yes	No

machine (noun)	cowl (noun)
any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks	protective covering consisting of a metal part that covers the engine
a motor vehicle with four wheels; usually propelled by an internal combustion engine	a loose hood or hooded robe (as worn by a monk)
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)	cowl (verb)
make by machinery	cover with or as with a cowl
turn, shape, mold, or otherwise finish by machinery