boiling point vs volatility

boiling point and volatility both are nouns.

Word	Noun	Adjective	Verb	Adverb
boiling point	Yes	No	No	No
volatility	Yes	No	No	No

As nouns, volatility is a hypernym of boiling point; that is, volatility is a word with a broader meaning than boiling point:

Other hypernyms of boiling point include excitability, excitableness.

boiling point (noun)	volatility (noun)
being highly angry or excited; ready to boil over	being easily excited
the temperature at which a liquid boils at sea level	the trait of being unpredictably irresolute
	the property of changing readily from a solid or liquid to a vapor