Swipe may refer to any of the following:
1. For any touch screen interface or interface that uses one or more of your fingers, swipe or slide is a term that describes laying your finger on a screen and moving in any direction. For example, with a smartphone, you may need to slide or swipe your finger from left-to-right, right-to-left, or from low-to-high to unlock the phone.
2. When referring to a credit card, a swipe refers to when the card is slid through the magnetic card reader, and a charge is made to the credit card account.
3. Slide may also describe the motion of swiping your finger. A slide may also describe a slide in a slideshow. For this reason, when you describe a finger motion you should use "swipe" instead of "slide" to help prevent confusion.