escutcheon vs after part

escutcheon and after part both are nouns.

Word	Noun	Adjective	Verb	Adverb
escutcheon	Yes	No	No	No
after part	Yes	No	No	No

escutcheon (noun)	after part (noun)
a shield; especially one displaying a coat of arms	the rear part of a ship
(nautical) a plate on a ship's stern on which the name is inscribed
a flat protective covering (on a door or wall etc) to prevent soiling by dirty fingers