lube vs motor oil

lube and motor oil both are nouns.

Word	Noun	Adjective	Verb	Adverb
lube	Yes	No	Yes	No
motor oil	Yes	No	No	No

As nouns, motor oil is a hyponym of lube; that is, motor oil is a word with a more specific, narrower meaning than lube:

lube: a substance capable of reducing friction by making surfaces smooth or slippery
motor oil: oil used to lubricate the moving parts of a motor

Other hyponyms of lube include drilling fluid, drilling mud.

lube (noun)	motor oil (noun)
a substance capable of reducing friction by making surfaces smooth or slippery	oil used to lubricate the moving parts of a motor

lube (verb)	motor oil (verb)
apply a lubricant to