drill

daily dozen, regimen

housekeeping

custom, fashion, habit, practice (also practise), trick, wont

approach, manner, method, procedure, strategy, style, tack, technique, way

design, plan, program, scheme

convention, policy, tradition

assignment, homework, lesson

brushup, refresher, review

broach, tap

poke, prick, prickle

penetrate

burrow (into), excavate, gouge, groove, hollow

break, cut, gash, notch, rend, rupture, slash, slit, split

blow away, bring down, drop, pick off, shoot down

blaze, pepper, potshot, snipe (at)

blast (at), fire (at)

pistol, shotgun

machine-gun, tommy-gun

croak [slang], destroy, dispatch, do in, fell, ice [slang], kill, slay

annihilate, blot out, butcher, decimate, massacre, slaughter, wipe out