Admiral Byrd vs Byrd

Admiral Byrd and Byrd both are nouns.

Word	Noun	Adjective	Verb	Adverb
Admiral Byrd	Yes	No	No	No
Byrd	Yes	No	No	No

As nouns, Admiral Byrd and Byrd are synonyms defined as:

Admiral Byrd and Byrd: explorer and United States naval officer; led expeditions to explore Antarctica (1888-1957)

Other synonyms of Admiral Byrd include Richard E. Byrd, Richard Evelyn Byrd.

Admiral Byrd (noun)	Byrd (noun)
explorer and United States naval officer; led expeditions to explore Antarctica (1888-1957)	explorer and United States naval officer; led expeditions to explore Antarctica (1888-1957)
	English organist and composer of church music; master of 16th century polyphony; was granted a monopoly in music printing with Thomas Tallis (1543-1623)