coconut oil vs vegetable oil

coconut oil and vegetable oil both are nouns.

Word	Noun	Adjective	Verb	Adverb
coconut oil	Yes	No	No	No
vegetable oil	Yes	No	No	No

As nouns, vegetable oil is a hypernym of coconut oil; that is, vegetable oil is a word with a broader meaning than coconut oil:

coconut oil: oil from coconuts
vegetable oil: any of a group of liquid edible fats that are obtained from plants

Other hypernyms of coconut oil include oil.

coconut oil (noun)	vegetable oil (noun)
oil from coconuts	any of a group of liquid edible fats that are obtained from plants