pat

To tap gently with the open hand or with something flat.

To stroke lightly as a gesture of affection. synonym: caress.

To mold by tapping gently with the hands or a flat implement.

To run or walk with a tapping sound.

To hit something or against something gently or lightly.

A light gentle stroke or tap.

The sound made by a light stroke or tap or by light footsteps.

A small mass shaped by or as if by patting.

(pat on the back) An expression or gesture of praise or approval.