budget vs calculate

budget is a noun but calculate is not a noun.

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

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

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

budget (noun)	calculate (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)	calculate (verb)
make a budget	make a mathematical calculation or computation
	specifically design a product, event, or activity for a certain public
	judge to be probable
	have faith or confidence in
	predict in advance
	keep an account of