budget vs reckon

budget is a noun but reckon is not a noun.

Word	Noun	Adjective	Verb	Adverb
budget	Yes	No	Yes	No
reckon	No	No	Yes	No

As verbs, reckon is a hypernym of budget; that is, reckon is a word with a broader meaning than budget:

Other hypernyms of budget include calculate, cipher, compute, cypher, figure, work out.

budget (noun)	reckon (noun)
a sum of money allocated for a particular purpose
a summary of intended expenditures along with proposals for how to meet them

budget (verb)	reckon (verb)
make a budget	deem to be
	make a mathematical calculation or computation
	expect, believe, or suppose
	judge to be probable
	have faith or confidence in
	take account of