rush vs shoot down

rush is a noun but shoot down is not a noun.

Word	Noun	Adjective	Verb	Adverb
rush	Yes	Yes	Yes	No
shoot down	No	No	Yes	No

As verbs, shoot down is a hyponym of rush; that is, shoot down is a word with a more specific, narrower meaning than rush:

Other hyponyms of rush include barge, push forward, thrust ahead, buck, charge, shoot, tear, dart, dash, flash, scoot, scud, shoot.

rush (noun)	shoot down (noun)
the act of moving hurriedly and in a careless manner
(American football) an attempt to advance the ball by running into the line
a sudden forceful flow
a sudden burst of activity
the swift release of a store of affective force
grasslike plants growing in wet places and having cylindrical often hollow stems

rush (adjective)	shoot down (adjective)
done under pressure
not accepting reservations

rush (verb)	shoot down (verb)
act at high speed	shoot at and force to come down
urge to an unnatural speed	move quickly and violently
attack suddenly	thwart the passage of
cause to occur rapidly
move hurridly
run with the ball, in football
cause to move fast or to rush or race