grease vs axle grease

grease and axle grease both are nouns.

Word	Noun	Adjective	Verb	Adverb
grease	Yes	No	Yes	No
axle grease	Yes	No	No	No

As nouns, axle grease is a hyponym of grease; that is, axle grease is a word with a more specific, narrower meaning than grease:

grease (noun)	axle grease (noun)
anything regarded as making something unclean	a thick heavy grease used to lubricate axles
a thick fatty oil (especially one used to lubricate machinery)

grease (verb)	axle grease (verb)
lubricate with grease