Mizzen

1. A mizzen sail is a small sail (triangular or gaff) on a ketch or yawl set abaft the mizzenmast.
2. A mizzen staysail is an occasional lightweight staysail on a ketch or yawl, set forward of the mizzenmast while reaching in light to moderate airs.
3. A mizzenmast is a mast on a ketch or yawl, or spritsail barge. Its positioning afore of abaft the rudder post distinguishes between a ketch or a yawl. On a barge its rig determines if she is a muffie or a mulie.