beefeater vs yeoman of the guard

beefeater and yeoman of the guard both are nouns.

Word	Noun	Adjective	Verb	Adverb
beefeater	Yes	No	No	No
yeoman of the guard	Yes	No	No	No

As nouns, beefeater and yeoman of the guard are synonyms defined as:

beefeater and yeoman of the guard: officer in the (ceremonial) bodyguard of the British monarch

Other synonyms of beefeater include yeoman.

beefeater (noun)	yeoman of the guard (noun)
officer in the (ceremonial) bodyguard of the British monarch	officer in the (ceremonial) bodyguard of the British monarch