shiv

an instrument with a metal length that has a sharp edge for cutting watch yourself in Cell Block 8, or you'll end up with a shiv in your back Synonyms blade, cutter, shank [slang], knife [slang]Related Words cleaver, hack; bayonet, bodkin, bolo, bowie knife, cutlass, dagger, dirk, jackknife, machete, pocketknife, poniard, sheath knife, stiletto, stylet, switchblade, switch knife, yataghan; rapier, saber (or sabre), steel, sword; scalpel