eat vs pick up

eat and pick up both are verbs.

Word	Noun	Adjective	Verb	Adverb
eat	No	No	Yes	No
pick up	No	No	Yes	No

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

eat (verb)	pick up (verb)
cause to deteriorate due to the action of water, air, or an acid	gain or regain energy
take in solid food	improve significantly; go from bad to good
eat a meal; take a meal	lift out or reflect from a background
take in food; used of animals only	get to know or become aware of, usually accidentally
use up (resources or materials)	eat by pecking at, like a bird
worry or cause anxiety in a persistent way	take into custody
	take up by hand
	fill with high spirits; fill with optimism
	give a passenger or a hitchhiker a lift
	take and lift upward
	perceive with the senses quickly, suddenly, or momentarily
	register (perceptual input)
	buy casually or spontaneously
	gather or collect
	get in addition, as an increase
	meet someone for sexual purposes