What is what does accept mean on snapchat?

On Snapchat, "accept" primarily refers to accepting a Friend Request. When someone sends you a friend request, you'll see it in your "Added Me" section. By tapping the "Accept" button next to their name, you're confirming that you want to be friends with them on Snapchat. This allows you to send snaps and chats to each other. If you don't accept, they won't be able to directly send you snaps or messages.