stimulate vs pick up

stimulate and pick up both are verbs.

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

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

stimulate (verb)	pick up (verb)
cause to be alert and energetic	gain or regain energy
act as a stimulant	improve significantly; go from bad to good
provide the needed stimulus for	lift out or reflect from a background
cause to do; cause to act in a specified manner	get to know or become aware of, usually accidentally
cause to occur rapidly	eat by pecking at, like a bird
stir the feelings, emotions, or peace of	take into custody
stir feelings in	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