To fish for spearfish by any method.
To try to catch a fish using a spear or spear gun.
Any of the genus Tetrapturus of marlins, a type of fish with the upper jaw elongated into a spearlike bill.
Any striped marlin (Kajikia audax)
Any quillback (Carpioides cyprinus
To fish for swordfish.
A sudoku technique involving possible cell locations for a digit, or pair, or triple, in uniquely three rows and three columns only. This allows for the elimination of candidates around the grid.
A large marine fish with a long, pointed bill, Xiphias gladius.