eat vs eating

eat is not a noun while eating is a noun.

Word	Noun	Adjective	Verb	Adverb
eat	No	No	Yes	No
eating	Yes	No	No	No

eat (noun)	eating (noun)
	the act of consuming food

eat (verb)	eating (verb)
cause to deteriorate due to the action of water, air, or an acid
take in solid food
eat a meal; take a meal
take in food; used of animals only
use up (resources or materials)
worry or cause anxiety in a persistent way