Reeve—To pass a rope through a block or a hole of any kind.

Roach—The curved part of the foot of a sail.

Rockered keel—A keel whose ends curve upward.

Running bowsprit—A bowsprit so fitted as to run in or out and reef.

Serve—To cover a rope with spunyarn.

Shake out a reef—To untie the reef points and set the sail.

Sheathing—The copper or other metal nailed on the bottom of a vessel.

Sheave—The grooved wheel in a block or in the sheave hole of a spar over which the rope passes.

Sheet—The rope by which the clew of a sail is secured.

Snotter—An eye strop used to support the heel of a sprit.