1. (v. t.) 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. (v. t.) To put a new sole or heel on; as, to tap shoes.

3. (n.) A gentle or slight blow; a light rap; a pat.

4. (n.) A piece of leather fastened upon the bottom of a boot or shoe in repairing or renewing the sole or heel.

5. (n.) A signal, by drum or trumpet, for extinguishing all lights in soldiers' quarters and retiring to bed, -- usually given about a quarter of an hour after tattoo.

6. (v. i.) To strike a gentle blow.

7. (n.) A hole or pipe through which liquor is drawn.

8. (n.) A plug or spile for stopping a hole pierced in a cask, or the like; a faucet.

9. (n.) Liquor drawn through a tap; hence, a certain kind or quality of liquor; as, a liquor of the same tap.

10. (n.) A place where liquor is drawn for drinking; a taproom; a bar.

11. (n.) A tool for forming an internal screw, as in a nut, consisting of a hardened steel male screw grooved longitudinally so as to have cutting edges.

12. (v. t.) To pierce so as to let out, or draw off, a fluid; as, to tap a cask, a tree, a tumor, etc.

13. (v. t.) Hence, to draw from (anything) in any analogous way; as, to tap telegraph wires for the purpose of intercepting information; to tap the treasury.

14. (v. t.) To draw, or cause to flow, by piercing.

15. (v. t.) To form an internal screw in (anything) by means of a tool called a tap; as, to tap a nut.

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