taxation vs accumulator

taxation and accumulator both are nouns.

Word	Noun	Adjective	Verb	Adverb
taxation	Yes	No	No	No
accumulator	Yes	No	No	No

taxation (noun)	accumulator (noun)
the imposition of taxes; the practice of the government in levying taxes on the subjects of a state	a voltaic battery that stores electric charge
charge against a citizen's person or property or activity for the support of government	(computer science) a register that has a built-in adder that adds an input number to the contents of the register
government income due to taxation	a person who is employed to collect payments (as for rent or taxes)