Guest checkout refers to the option for customers to make a purchase on a website without creating an account or logging in. This allows for a quick and convenient shopping experience, as users can simply enter their shipping and payment information without the hassle of creating a profile. Guest checkout is often offered as an alternative to creating an account, making it ideal for one-time or infrequent shoppers. It also provides a sense of privacy for those who prefer not to share their personal information. However, guest checkout may not offer the same benefits as creating an account, such as order tracking and personalized recommendations. Overall, guest checkout offers a seamless and efficient way for customers to make purchases online.