slay

bump off, butcher, cut down, finish, get, ice [slang], knock off, murder, neutralize, off [slang], put away, rub out, scrag, snuff, take out, waste, whack [slang]

annihilate, blot out, decimate, kill off, massacre, mow, slaughter, smite

assassinate, execute, martyr, terminate

euthanize (also euthanatize), put down

suicide

blow away, shoot, shoot down

blot out, carry off, claim, cut down, destroy, fell, kill, smite, zap

butcher, massacre, mow (down), slaughter

annihilate, eliminate, eradicate, exterminate, wipe out