run down vs check out

run down and check out both are verbs.

Word	Noun	Adjective	Verb	Adverb
run down	No	No	Yes	No
check out	No	No	Yes	No

As verbs, run down and check out are synonyms defined as:

run down (verb)	check out (verb)
use up all one's strength and energy and stop working	examine so as to determine accuracy, quality, or condition
injure or kill by knocking (someone or something) down and passing over the body, as with a vehicle	announce one's departure from a hotel
pursue until captured	try to learn someone's opinions and intentions
move downward	record, add up, and receive payment for items purchased
examine hastily	withdraw money by writing a check
deplete	trace
trace	be verified or confirmed; pass inspection