freedom vs blank check

freedom and blank check both are nouns.

Word	Noun	Adjective	Verb	Adverb
freedom	Yes	No	No	No
blank check	Yes	No	No	No

As nouns, blank check is a hyponym of freedom; that is, blank check is a word with a more specific, narrower meaning than freedom:

freedom: the condition of being free; the power to act or speak or think without externally imposed restraints
blank check: freedom to do as you see fit

freedom (noun)	blank check (noun)
the condition of being free; the power to act or speak or think without externally imposed restraints	a check that has been signed but with the amount payable left blank
immunity from an obligation or duty	freedom to do as you see fit