crucible vs vessel

crucible and vessel both are nouns.

Word	Noun	Adjective	Verb	Adverb
crucible	Yes	No	No	No
vessel	Yes	No	No	No

As nouns, vessel is a hypernym of crucible; that is, vessel is a word with a broader meaning than crucible:

crucible: a vessel made of material that does not melt easily; used for high temperature chemical reactions
vessel: an object used as a container (especially for liquids)

crucible (noun)	vessel (noun)
a vessel made of material that does not melt easily; used for high temperature chemical reactions	a craft designed for water transportation
	an object used as a container (especially for liquids)
	a tube in which a body fluid circulates