Netting. Network of rope or small lines. Used for stowing away sails or hammocks.
Nettles. (See Knittles.)
Ninepin Block. A block in the form of a ninepin, used for a fair-leader in the rail.
Nip. A short turn in a rope.
Nippers. A number of yarns marled together, used to secure a cable to the messenger.
Nock. The forward upper end of a sail that sets with a boom.
Nun-buoy. A buoy tapering at each end.
Nut. Projections on each side of the shank of an anchor, to secure the stock to its place.
Oakum. Stuff made by picking rope-yarns to pieces. Used for caulking, and other purposes.
Oar. A long wooden instrument with a flat blade at one end, used for propelling boats.