eau de toilette vs essence

eau de toilette and essence both are nouns.

Word	Noun	Adjective	Verb	Adverb
eau de toilette	Yes	No	No	No
essence	Yes	No	No	No

As nouns, essence is a hypernym of eau de toilette; that is, essence is a word with a broader meaning than eau de toilette:

Other hypernyms of eau de toilette include perfume.

eau de toilette (noun)	essence (noun)
a perfumed liquid lighter than cologne	a toiletry that emits and diffuses a fragrant odor
	the choicest or most essential or most vital part of some idea or experience
	the central meaning or theme of a speech or literary work
	any substance possessing to a high degree the predominant properties of a plant or drug or other natural product from which it is extracted