- a round, flat block of wood with three holes in it for a lanyard, used in pairs on a sailing ship to hold the shrouds and stays taut
- Slang an accurate marksman
See deadeye in American Heritage Dictionary 4
- Nautical A flat hardwood disk with a grooved perimeter, pierced by three holes through which the lanyards are passed, used to fasten the shrouds.
- Slang An expert shooter: a deadeye with the rifle.
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