Nautical, behind; aft; in or at the back or hind part of a ship, or the parts which lie toward the stern: opposed to forward; relatively, further aft, or toward the stern: as, abaft the mainmast (astern).
the GNU version of the Collaborative International Dictionary of English
adverb.
Toward the stern; aft.
preposition.
Behind; toward the stern from.
preposition.
See under Beam.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adverb.
at or near or toward the stern of a ship or tail of an airplane
Word Usage
"The bunk next on the port side to the cook's and abaft of it"