hotel bill vs invoice

hotel bill and invoice both are nouns.

Word	Noun	Adjective	Verb	Adverb
hotel bill	Yes	No	No	No
invoice	Yes	No	Yes	No

As nouns, invoice is a hypernym of hotel bill; that is, invoice is a word with a broader meaning than hotel bill:

hotel bill: statement of charges for staying in a hotel
invoice: an itemized statement of money owed for goods shipped or services rendered

Other hypernyms of hotel bill include account, bill.

hotel bill (noun)	invoice (noun)
statement of charges for staying in a hotel	an itemized statement of money owed for goods shipped or services rendered

hotel bill (verb)	invoice (verb)
	send a bill to