observe vs check out

observe and check out both are verbs.

Word	Noun	Adjective	Verb	Adverb
observe	No	No	Yes	No
check out	No	No	Yes	No

As verbs, check out is a hypernym of observe; that is, check out is a word with a broader meaning than observe:

Other hypernyms of observe include check, check into, check over, check up on, go over, look into, suss out.

observe (verb)	check out (verb)
stick to correctly or closely	examine so as to determine accuracy, quality, or condition
make mention of	announce one's departure from a hotel
watch attentively	try to learn someone's opinions and intentions
observe with care or pay close attention to	record, add up, and receive payment for items purchased
discover or determine the existence, presence, or fact of by perception with the eyes	withdraw money by writing a check
follow with the eyes or the mind	trace
show respect towards	be verified or confirmed; pass inspection
behave as expected during of holidays or rites
conform one's action or practice to