decrease vs tax credit

decrease and tax credit both are nouns.

Word	Noun	Adjective	Verb	Adverb
decrease	Yes	No	Yes	No
tax credit	Yes	No	No	No

As nouns, tax credit is a hyponym of decrease; that is, tax credit is a word with a more specific, narrower meaning than decrease:

decrease: the act of decreasing or reducing something
tax credit: a direct reduction in tax liability (not dependent on the taxpayer's tax bracket)

decrease (noun)	tax credit (noun)
the act of decreasing or reducing something	a direct reduction in tax liability (not dependent on the taxpayer's tax bracket)
the amount by which something decreases
a change downward
a process of becoming smaller or shorter

decrease (verb)	tax credit (verb)
decrease in size, extent, or range
make become smaller