banker's draft vs bank draft

banker's draft and bank draft both are nouns.

Word	Noun	Adjective	Verb	Adverb
banker's draft	Yes	No	No	No
bank draft	Yes	No	No	No

As nouns, banker's draft and bank draft are synonyms defined as:

banker's draft and bank draft: a draft drawn by a bank against funds deposited in another bank

banker's draft (noun)	bank draft (noun)
a draft drawn by a bank against funds deposited in another bank	a draft drawn by a bank against funds deposited in another bank