spur vs injure

spur is a noun but injure is not a noun.

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

spur (noun)	injure (noun)
a sharp prod fixed to a rider's heel and used to urge a horse onward
a railway line connected to a trunk line
a verbalization that encourages you to attempt something
tubular extension at the base of the corolla in some flowers
any sharply pointed projection

spur (verb)	injure (verb)
goad with spurs	cause injuries or bodily harm to
equip with spurs	cause damage or affect negatively
strike with a spur	hurt the feelings of
give heart or courage to
incite or stimulate