pleasure vs luxuriation

pleasure and luxuriation both are nouns.

Word	Noun	Adjective	Verb	Adverb
pleasure	Yes	No	No	No
luxuriation	Yes	No	No	No

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

Other hyponyms of pleasure include foodgasm.

pleasure (noun)	luxuriation (noun)
sexual gratification	an activity that affords excessive pleasure and enjoyment
an activity that affords enjoyment
something or someone that provides a source of happiness
a formal expression
a fundamental feeling that is hard to define but that people desire to experience