roundel vs heraldic bearing

roundel and heraldic bearing both are nouns.

Word	Noun	Adjective	Verb	Adverb
roundel	Yes	No	No	No
heraldic bearing	Yes	No	No	No

As nouns, heraldic bearing is a hypernym of roundel; that is, heraldic bearing is a word with a broader meaning than roundel:

roundel: (heraldry) a charge in the shape of a filled circle
heraldic bearing: heraldry consisting of a design or image depicted on a shield

Other hypernyms of roundel include armorial bearing, bearing, charge.

roundel (noun)	heraldic bearing (noun)
round piece of armor plate that protects the armpit	heraldry consisting of a design or image depicted on a shield
(heraldry) a charge in the shape of a filled circle
English form of rondeau having three triplets with a refrain after the first and third