The term "sale price" refers to the price at which a product or service is sold to a customer during a promotional period. To expand your vocabulary and make your writing more varied and interesting, you can use synonyms for this term such as special offer, markdown, discount rate, bargain price, reduced cost, promotional price, clearance price, and slashed price. These synonyms convey the same meaning while also adding nuance to your writing. For instance, using the term special offer may suggest a more limited-time opportunity, while markdown and slashed price can convey a greater amount of savings. By using these synonyms, you can add depth and variety to your writing.