bruiser vs strapper

bruiser and strapper both are nouns.

Word	Noun	Adjective	Verb	Adverb
bruiser	Yes	No	No	No
strapper	Yes	No	No	No

As nouns, bruiser and strapper are synonyms defined as:

Other synonyms of bruiser include bull, Samson.

bruiser (noun)	strapper (noun)
a large and strong and heavyset man	a large and strong and heavyset man