dormant vs heraldry

dormant is not a noun while heraldry is a noun.

Word	Noun	Adjective	Verb	Adverb
dormant	No	Yes	No	No
heraldry	Yes	No	No	No

dormant (noun)	heraldry (noun)
	emblem indicating the right of a person to bear arms
	the study and classification of armorial bearings and the tracing of genealogies

dormant (adjective)	heraldry (adjective)
(of e.g. volcanoes) not erupting and not extinct
in a condition of biological rest or suspended animation
inactive but capable of becoming active
lying with head on paws as if sleeping