noun, noun or participle which takes 'suru', transitive verb
Used as a noun or with する to mean a price reduction. Common in retail and business contexts.
この商品はディスカウントされています。
This item is discounted.
ディスカウントストアで買い物をする。
I shop at a discount store.
割引 is the native Japanese word for discount, often used in formal or written contexts, while ディスカウント is a loanword with a slightly more modern or commercial feel.
Borrowed from English 'discount'.