inquiry vs heraldry

inquiry and heraldry both are nouns.

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

As nouns, heraldry is a hyponym of inquiry; that is, heraldry is a word with a more specific, narrower meaning than inquiry:

inquiry: a search for knowledge
heraldry: the study and classification of armorial bearings and the tracing of genealogies

inquiry (noun)	heraldry (noun)
a systematic investigation of a matter of public interest	emblem indicating the right of a person to bear arms
a search for knowledge	the study and classification of armorial bearings and the tracing of genealogies
an instance of questioning