speed vs zoom

speed and zoom both are nouns.

Word	Noun	Adjective	Verb	Adverb
speed	Yes	No	Yes	No
zoom	Yes	No	Yes	No

As verbs, zoom is a hyponym of speed; that is, zoom is a word with a more specific, narrower meaning than speed:

Other hyponyms of speed include dart, fleet, flit, flutter, run, whizz, whizz along, zoom along.

speed (noun)	zoom (noun)
changing location rapidly	the act of rising upward into the air
a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression	a rapid rise
a rate (usually rapid) at which something happens
the ratio of the focal length to the diameter of a (camera) lens system
distance travelled per unit time

speed (verb)	zoom (verb)
move faster	move along very quickly
cause to move faster	move with a low humming noise
move very fast	rise rapidly
travel at an excessive or illegal velocity
move hurridly