enzyme vs catalyst

enzyme and catalyst both are nouns.

Word	Noun	Adjective	Verb	Adverb
enzyme	Yes	No	No	No
catalyst	Yes	No	No	No

As nouns, catalyst is a hypernym of enzyme; that is, catalyst is a word with a broader meaning than enzyme:

enzyme: any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
catalyst: (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

Other hypernyms of enzyme include accelerator, protein.

enzyme (noun)	catalyst (noun)
any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions	something that causes an important event to happen
	(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected