If you are talking in plural terms, you can say Costcos. Ex: there are 3 Costcos within a 10 mile radius of my house. If you are talking in ownership terms, you can say Costco's. Ex: Costco's...
Chinese Over-Seas Trading COmpany = COSTCO. I had a patient one time who was a higher-up for the company.
Costco is a warhouse based store the specializes in the selling of case goods and bulk items.
I guess so.there are these people that stand by the entrance and i think you have to take out your card and show it to him or her in order to come in.
It is for members only and the card denotes membership.