A small business is like a lemonade stand, something small, isn’t being worked at by lots of people and isn’t well known. Nike, Champion, Supreme, Gucci, Louis Vuitton etc. are big business because there well known. If you were to start a car wash business by yourself that’s a small business because it’s just you. If you were to decide to add tons of people to it and really make a future out if that would turn into a big business.