A yawl is a two-masted sailing craft similar to a sloop or cutter but with an additional mizzen mast well aft of the main mast, often right on the transom. A small mizzen sail is hoisted on the mizzen mast. The yawl was originally developed as a rig for commercial fishing boats, one good example of this being the Salcombe Yawl (a traditional small fishing boat built in Devon).
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yawl A small boat made for rowing with four or six oars.