zinc ointment vs unguent

zinc ointment and unguent both are nouns.

Word	Noun	Adjective	Verb	Adverb
zinc ointment	Yes	No	No	No
unguent	Yes	No	No	No

As nouns, unguent is a hypernym of zinc ointment; that is, unguent is a word with a broader meaning than zinc ointment:

zinc ointment: an ointment containing zinc that is used to treat certain skin diseases
unguent: semisolid preparation (usually containing a medicine) applied externally as a remedy or for soothing an irritation

Other hypernyms of zinc ointment include balm, ointment, salve, unction.

zinc ointment (noun)	unguent (noun)
an ointment containing zinc that is used to treat certain skin diseases	semisolid preparation (usually containing a medicine) applied externally as a remedy or for soothing an irritation