in the context of shopping, refund means getting money back when you bring back the goods. Return means you bring back the goods, but not necessary for money back. it can be for exchanges of other goods or size or for store credit, of course can be for a refund too.
Do you get money back when you return?
When you don't actually get what you paid for, you deserve a refund, or a repayment of the money you spent. Most businesses will refund money to unhappy customers, and when you return something — like a pair of pants that doesn't fit — you'll also get a refund.
Why does Amazon refund without return?
What Is Amazon's Refund Policy Without Return? The company's Conditions of Use states that Amazon doesn't take title to returned items until it arrives at their fulfillment center. A refund could be granted without needing a return, but this is decided solely at Amazon's discretion.