n.
Function: noun
Date: 1611
1 : an instrument with an edged or pointed end for making holes in hard substances by revolving or by a succession of blows also : a machine for operating such an instrument
2 : the act or exercise of training soldiers in marching and in executing prescribed movements with a weapon
3 a : a physical or mental exercise aimed at perfecting facility and skill especially by regular practice b : a formal exercise by a team of marchers c : the approved, correct, or usual procedure for accomplishing something : ROUTINE
4 a : a marine snail ( Urosalpinx cinerea ) destructive to oysters by boring through their shells and feeding on the soft parts b : any of several mollusks related to the drill
5 : a drilling sound