boost vs spur

boost and spur both are nouns.

Word	Noun	Adjective	Verb	Adverb
boost	Yes	No	Yes	No
spur	Yes	No	Yes	No

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

Other hyponyms of boost include connive at, wink at, cultivate, foster, further, help, carry, feed, conduce, contribute, lead.

boost (noun)	spur (noun)
the act of giving hope or support to someone	a sharp prod fixed to a rider's heel and used to urge a horse onward
the act of giving a push	a railway line connected to a trunk line
an increase in cost	a verbalization that encourages you to attempt something
	tubular extension at the base of the corolla in some flowers
	any sharply pointed projection

boost (verb)	spur (verb)
increase or raise	goad with spurs
give a boost to; be beneficial to	equip with spurs
push or shove upward, as if from below or behind	strike with a spur
increase	give heart or courage to
contribute to the progress or growth of	incite or stimulate