A "discount code" refers to a special code or coupon that you can use when making a purchase to receive a reduction in price or a certain percentage off the original price. Full definition
I have so many exciting things coming your way including a special discount code for a piece you're all going to love, and a super cool giveaway too! (thesilksneaker.com)
Secondly, you're gonna be hard - pressed to find very many retailers that will let you use discount codes on brand - new designer merchandise. (ashleybrookenicholas.com)
You will find a complete list with discount codes at the bottom of this article. (40plusstyle.com)