payroll vs sum

payroll and sum both are nouns.

Word	Noun	Adjective	Verb	Adverb
payroll	Yes	No	No	No
sum	Yes	No	Yes	No

As nouns, sum is a hypernym of payroll; that is, sum is a word with a broader meaning than payroll:

Other hypernyms of payroll include amount, amount of money, sum of money.

payroll (noun)	sum (noun)
the department that determines the amounts of wage or salary due to each employee	the whole amount
a list of employees and their salaries	the choicest or most essential or most vital part of some idea or experience
the total amount of money paid in wages	a quantity obtained by the addition of a group of numbers
	the final aggregate
	a set containing all and only the members of two or more given sets
	a quantity of money

payroll (verb)	sum (verb)
	determine the sum of
	be a summary of