false return vs tax return

false return and tax return both are nouns.

Word	Noun	Adjective	Verb	Adverb
false return	Yes	No	No	No
tax return	Yes	No	No	No

As nouns, tax return is a hypernym of false return; that is, tax return is a word with a broader meaning than false return:

false return: an incorrect income tax return
tax return: document giving the tax collector information about the taxpayer's tax liability

Other hypernyms of false return include income tax return, return.

false return (noun)	tax return (noun)
an incorrect income tax return	document giving the tax collector information about the taxpayer's tax liability