Search Result for "tapping": 
Wordnet 3.0

NOUN (1)

1. the sound of light blow or knock;
- Example: "he heard the tapping of the man's cane"


The Collaborative International Dictionary of English v.0.48:

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. [1913 Webster] 2. To put a new sole or heel on; as, to tap shoes. [1913 Webster]
WordNet (r) 3.0 (2006):

tapping n 1: the sound of light blow or knock; "he heard the tapping of the man's cane"
Moby Thesaurus II by Grady Ward, 1.0:

31 Moby Thesaurus words for "tapping": aspiration, banging, blasting, bleeding, bloodletting, broaching, bursting, cracking, crashing, cupping, drafting, drainage, draining, drawing, emptying, exploding, explosive, flapping, knocking, milking, phlebotomy, pipetting, popping, pumping, rapping, siphoning, slapping, slatting, sucking, suction, venesection