Hg vs cinnabar

Hg and cinnabar both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hg	Yes	No	No	No
cinnabar	Yes	Yes	No	No

Hg (noun)	cinnabar (noun)
a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures	large red-and-black European moth; larvae feed on leaves of ragwort; introduced into United States to control ragwort
	a heavy reddish mineral consisting of mercuric sulfide; the chief source of mercury

Hg (adjective)	cinnabar (adjective)
	of a vivid red to reddish-orange color