COST definition: 1. the amount of money needed to buy, do, or make something: 2. the amount of money needed for a…. Learn more. Shop Costco.ca for electronics, computers, furniture, outdoor living, appliances, jewellery and more. Enjoy low warehouse prices on name-brand products delivered to your door. Official website for Costsco Wholesale. Shop by departments, or search for specific item(s). Find top-quality grocery and household items at Costco. Enjoy bulk savings on food, beverages, cleaning products, and everyday essentials. Find the latest Costco Wholesale Corporation (COST) stock quote, history, news and other vital information to help you with your stock trading and investing. The meaning of COST is the amount or equivalent paid or charged for something : price. How to use cost in a sentence. Explore key facts and figures from COST’s 41 member countries and one cooperating member. Cost is the value of money that has been used up to produce something or deliver a service, and hence is not available for use anymore. In business, the cost may be one of acquisition, in which case the amount of money expended to acquire it is counted as cost. Shop Costco online for quality furniture, mattresses, TVs, contacts, jewelry, and laptops. Unbeatable prices on top brands. Definition: A cost is an expenditure required to produce or sell a product or get an asset ready for normal use. In other words, it’s the amount paid to manufacture a product, purchase inventory, sell merchandise, or get equipment ready to use in a business process.