turn on vs psych up

turn on and psych up both are verbs.

Word	Noun	Adjective	Verb	Adverb
turn on	No	No	Yes	No
psych up	No	No	Yes	No

As verbs, psych up is a hyponym of turn on; that is, psych up is a word with a more specific, narrower meaning than turn on:

Other hyponyms of turn on include hype up, bother, pother, electrify.

turn on (verb)	psych up (verb)
become hostile towards	get excited or stimulated
get high, stoned, or drugged
cause to operate by flipping a switch
to evoke sexual feelings
cause to be agitated, excited, or roused
produce suddenly or automatically
be contingent on