absinthe oil vs volatile oil

absinthe oil and volatile oil both are nouns.

Word	Noun	Adjective	Verb	Adverb
absinthe oil	Yes	No	No	No
volatile oil	Yes	No	No	No

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

absinthe oil: a dark bitter oil obtained from wormwood leaves; flavors absinthe liqueurs
volatile oil: an oil having the odor or flavor of the plant from which it comes; used in perfume and flavorings

Other hypernyms of absinthe oil include essential oil.

absinthe oil (noun)	volatile oil (noun)
a dark bitter oil obtained from wormwood leaves; flavors absinthe liqueurs	an oil having the odor or flavor of the plant from which it comes; used in perfume and flavorings