1. 
[syn: aft, abaft, astern]
The Collaborative International Dictionary of English v.0.48:
Abaft \A*baft"\ ([.a]*b[.a]ft"), prep. [Pref. a- on + OE. baft,
   baften, biaften, AS. be[ae]ftan; be by + [ae]ftan behind. See
   After, Aft, By.] (Naut.)
   Behind; toward the stern from; as, abaft the wheelhouse.
   [1913 Webster]
   Abaft the beam. See under Beam.
      [1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Abaft \A*baft"\, adv. (Naut.)
   Toward the stern; aft; as, to go abaft.
   [1913 Webster]
WordNet (r) 3.0 (2006):
abaft
    adv 1: at or near or toward the stern of a ship or tail of an
           airplane; "stow the luggage aft"; "ships with square
           sails sail fairly efficiently with the wind abaft"; "the
           captain looked astern to see what the fuss was about"
           [syn: aft, abaft, astern] [ant: fore, forward]