Tap \Tap\, v. t. [imp. & p. p. Tapped; p. pr. & vb. n. Tapping.]

[F. taper to strike; of Teutonic origin; cf. dial. G. tapp, tapps, a blow, tappe a paw, fist, G. tappen to grope.]

1. To strike with a slight or gentle blow; to touch gently; to rap lightly; to pat; as, to tap one with the hand or a cane.

2. To put a new sole or heel on; as, to tap shoes.

Source: Webster's Revised Unabridged Dictionary (1913)