Blackbeard vs Edward Thatch

Blackbeard and Edward Thatch both are nouns.

Word	Noun	Adjective	Verb	Adverb
Blackbeard	Yes	No	No	No
Edward Thatch	Yes	No	No	No

As nouns, Blackbeard and Edward Thatch are synonyms defined as:

Blackbeard and Edward Thatch: an English pirate who operated in the Caribbean and off the Atlantic coast of North America (died in 1718)

Other synonyms of Blackbeard include Edward Teach, Teach, Thatch.

Blackbeard (noun)	Edward Thatch (noun)
an English pirate who operated in the Caribbean and off the Atlantic coast of North America (died in 1718)	an English pirate who operated in the Caribbean and off the Atlantic coast of North America (died in 1718)