eat vs eat out

eat and eat out both are verbs.

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

As verbs, eat out is a hyponym of eat; that is, eat out is a word with a more specific, narrower meaning than eat:

eat (verb)	eat out (verb)
cause to deteriorate due to the action of water, air, or an acid	eat at a restaurant or at somebody else's home
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