to hit or try to hit somebody/something with your hand or an object by moving your arm with a wide, curved movement

They’re always swiping other kids’ sweets.

to pass a plastic card, such as a credit card, through a special machine that is able to read the information that is stored on it

The cash register only opens once the card has been swiped.

to move your finger quickly across the screen of an electronic device such as a mobile phone or small computer in order to move text, pictures, etc. or give commands

Switch on the phone and swipe your finger across the screen to unlock it.

an act of hitting or trying to hit somebody/something by moving your arm or something that you are holding with a wide, curved movement

He used the interview to take a swipe at his critics.

LEARNit Dictionary