allegory vs ensign

allegory and ensign both are nouns.

Word	Noun	Adjective	Verb	Adverb
allegory	Yes	No	No	No
ensign	Yes	No	No	No

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

allegory (noun)	ensign (noun)
a short moral story (often with animal characters)	colors flown by a ship to show its nationality
an expressive style that uses fictional characters and events to describe some subject by suggestive resemblances; an extended metaphor	an emblem flown as a symbol of nationality
a visible symbol representing an abstract idea	a person who holds a commissioned rank in the United States Navy or the United States Coast Guard; below lieutenant junior grade