home port also home·port (h?m?pôrt?)n.1. The port in which a vessel is registered or permanently based.2. The port from which a vessel primarily operates, regardless of its registry.tr.v. home port·ed, home port·ing, home ports also home·port·ed or home·port·ing or home·ports To base (a ship) permanently in a given port.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.home port or homeportn (Nautical Terms) nautical the port where a ship is basedCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014