boiling vs vaporisation

boiling and vaporisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
boiling	Yes	No	No	Yes
vaporisation	Yes	No	No	No

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

Other hypernyms of boiling include heating, warming, evaporation, vapor, vaporization, vapour.

boiling (noun)	vaporisation (noun)
cooking in a liquid that has been brought to a boil	annihilation by vaporizing something
the application of heat to change something from a liquid to a gas	the process of becoming a vapor

boiling (adverb)	vaporisation (adverb)
passionately or agitatedly