fore-and-aft sail fo·rean·daft·sail uncommon noun 1. any sail not set on a yard and whose normal position is in a fore-and-aft direction Synonymsfore-and-aft sail Related words Broader terms sail Narrower terms gaffsailgaff topsailjiblateenlugsailmizzenspankerspritsail WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.