| Knoll (n.) A little round hill |
| Knoll (v. t.) To ring, as a bell |
| Knoll (v. i.) To sound, as a bell |
| Knoll (n.) The tolling of a bell |
| Reef (n.) A chain or range of rocks lying at or near the surface of the water. See Coral reefs, under Coral. |
| Reef (n.) A large vein of auriferous quartz |
| Reef (v. t.) That part of a sail which is taken in or let out by means of the reef points, in order to adapt the size of the sail to the force of the wind. |
| Reef (v. t.) To reduce the extent of (as a sail) by roiling or folding a certain portion of it and making it fast to the yard or spar. |
| Reef-band (n.) A piece of canvas sewed across a sail to strengthen it in the part where the eyelet holes for reefing are made. |