IPA: /ˈhɛr.əldri/
KK: /ˈhɛr.əl.dri/
The study and practice of designing and using symbols, especially those related to coats of arms and family lineage.
He studied heraldry to understand the significance of the family crest.
Heraldry → It is formed from "herald" (from Old French *heraut*, meaning a messenger or one who proclaims) and "-ry" (a suffix denoting a field of study or practice). The word "heraldry" refers to the practice or study of coats of arms and heraldic symbols, which are used to identify individuals or families.
Think of a 'herald' as a messenger who 'proclaims' important symbols and identities, which is what heraldry is all about.