asea (??si?) adv1. (Physical Geography) in a seaward manner2. (Physical Geography) at or on the seaCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014a?sea (??si) adj., adv. 1. to or toward the sea; seaward. 2. sea (def. 10). [1855?60] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.