American Staffordshire terrier vs Staffordshire terrier

American Staffordshire terrier and Staffordshire terrier both are nouns.

Word	Noun	Adjective	Verb	Adverb
American Staffordshire terrier	Yes	No	No	No
Staffordshire terrier	Yes	No	No	No

As nouns, American Staffordshire terrier and Staffordshire terrier are synonyms defined as:

American Staffordshire terrier and Staffordshire terrier: American breed of muscular terriers with a short close-lying stiff coat

Other synonyms of American Staffordshire terrier include American pit bull terrier, pit bull terrier.

American Staffordshire terrier (noun)	Staffordshire terrier (noun)
American breed of muscular terriers with a short close-lying stiff coat	American breed of muscular terriers with a short close-lying stiff coat