shoot down vs vote down

shoot down and vote down both are verbs.

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

As verbs, shoot down and vote down are synonyms defined as:

Other synonyms of shoot down include defeat, kill, vote out.

shoot down (verb)	vote down (verb)
shoot at and force to come down	thwart the passage of
move quickly and violently	vote against
thwart the passage of