deadeye (n.)

• archer
• armhole
• artilleryman
• blowhole
• bowman
• bunghole
• cannoneer
• carabineer
• cringle
• eye
• eyelet
• gasket
• grommet
• guide
• gun
• gunman
• gunner
• hunter
• keyhole
• knothole
• loop
• loophole
• manhole
• marksman
• musketeer
• peephole
• pigeonhole
• pinhole
• placket
• porthole
• rifleman
• sharpshooter
• shooter
• shot
• sniper
• spiracle
• tap
• trapshooter
• vent
• venthole