acetum vs chili vinegar

acetum and chili vinegar both are nouns.

Word	Noun	Adjective	Verb	Adverb
acetum	Yes	No	No	No
chili vinegar	Yes	No	No	No

As nouns, chili vinegar is a hyponym of acetum; that is, chili vinegar is a word with a more specific, narrower meaning than acetum:

acetum: sour-tasting liquid produced usually by oxidation of the alcohol in wine or cider and used as a condiment or food preservative
chili vinegar: fiery vinegar flavored with chili peppers

Other hyponyms of acetum include cider vinegar, wine vinegar.

acetum (noun)	chili vinegar (noun)
sour-tasting liquid produced usually by oxidation of the alcohol in wine or cider and used as a condiment or food preservative	fiery vinegar flavored with chili peppers
a dilute solution of acetic acid that is used as a solvent (e.g. for a drug)