spade bit: a thin bit with a center point and cutting edges on either side
bit: the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press
swordfish: large toothless marine food fish with a long swordlike upper jaw; not completely cold-blooded i.e. they are able to warm their brains and eyes: worldwide in warm waters but feed on cold ocean floor coming to surface at night