discount vs bank discount

discount and bank discount both are nouns.

Word	Noun	Adjective	Verb	Adverb
discount	Yes	No	Yes	No
bank discount	Yes	No	No	No

As nouns, discount and bank discount are synonyms defined as:

discount and bank discount: interest on an annual basis deducted in advance on a loan

Other synonyms of discount include discount rate.

discount (noun)	bank discount (noun)
the act of reducing the selling price of merchandise	interest on an annual basis deducted in advance on a loan
an amount or percentage deducted
interest on an annual basis deducted in advance on a loan
a refund of some fraction of the amount paid

discount (verb)	bank discount (verb)
bar from attention or consideration
give a reduction in price on