1) Cat 2) Catamaran 3) Catboat 4) Trimaran 1) Cutter 2) Dennis Conner captains one 3) It may be found in a slip 4) Lake vessel 5) Lightning of Star 6) Opposite of a stinkpot 7) Pond skimmer 8) Regatta unit 9) Sailing boat 10) Sailing ship 11) Sailing vessel 12) Scooter or sandbagger 13) Trimaran 14) Vessel moved by the wind 15) Wind-driven vessel 
The cutter is similar to a sloop with a single mast and mainsail, but generally carries the mast further aft to allow for the use of two head sails attached to two fore stays, the head stay and the inner stay, which carry the jib and stay sail respectively. This is rarely considered a racing configuration; however, it gives versatility to cruising...
• (n.) A boat propelled by a sail or sails.
Sail'boat` noun A boat propelled by a sail or sails. 
[n] - a small sailing vessel
sailing boat noun a small sailing vessel; usually with a single mast