what is a referral
noun. The definition of a referral is the act of telling someone about the positive features of a person or a business, or the person who is being referred.1  An example of a referral is telling someone why a certain person or business would be a good relationship for them to consider.oun. The definition of a referral is the act of telling someone about the positive features of a person or a business, or the person who is being referred.