full admiral vs admiral

full admiral and admiral both are nouns.

Word	Noun	Adjective	Verb	Adverb
full admiral	Yes	No	No	No
admiral	Yes	No	No	No

As nouns, full admiral and admiral are synonyms defined as:

full admiral and admiral: the supreme commander of a fleet; ranks above a vice admiral and below a fleet admiral

full admiral (noun)	admiral (noun)
the supreme commander of a fleet; ranks above a vice admiral and below a fleet admiral	any of several brightly colored butterflies
	the supreme commander of a fleet; ranks above a vice admiral and below a fleet admiral