Edward Teach vs Blackbeard

Edward Teach and Blackbeard both are nouns.

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

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

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

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

Edward Teach (noun)	Blackbeard (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)