reckoning vs invoice

reckoning and invoice both are nouns.

Word	Noun	Adjective	Verb	Adverb
reckoning	Yes	No	No	No
invoice	Yes	No	Yes	No

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

reckoning: a bill for an amount due
invoice: an itemized statement of money owed for goods shipped or services rendered

Other hypernyms of reckoning include account, bill.

reckoning (noun)	invoice (noun)
the act of counting; reciting numbers in ascending order	an itemized statement of money owed for goods shipped or services rendered
problem solving that involves numbers or quantities
a bill for an amount due

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