dunk shot vs slam dunk

dunk shot and slam dunk both are nouns.

Word	Noun	Adjective	Verb	Adverb
dunk shot	Yes	No	No	No
slam dunk	Yes	No	No	No

As nouns, slam dunk is a hyponym of dunk shot; that is, slam dunk is a word with a more specific, narrower meaning than dunk shot:

dunk shot: a basketball shot in which the basketball is propelled downward into the basket
slam dunk: a forceful dunk

dunk shot (noun)	slam dunk (noun)
a basketball shot in which the basketball is propelled downward into the basket	a forceful dunk
	something that is a sure to occur; a foregone conclusion