What is 2x ss stand for in crocheting?

In crocheting, "2x ss" typically stands for "2 double slip stitches." It indicates that you should make two slip stitches in the designated stitch or space. This technique is often used to create a smooth transition or to join rounds in a project. Slip stitches are worked by inserting the hook into a stitch, pulling up a loop, and then pulling that loop through the loop already on the hook.