What's "besides" mean?

Native speaker’s answer
Rebecca
Here, "besides" is a preposition that means "other than" or "apart from." It can also mean "in addition to" or "moreover." Ex: What's your favorite food besides pizza? => apart from Ex: Besides swimming, I'm also pretty good at basketball. => in addition to/ apart from Ex: We don't have to go to the party. Besides, I don't have an outfit for it. => moreover