Wordnet 3.0
NOUN (2)
1.
the final extremity (however unpleasant it may be);
- Example: "he was determined to fight to the bitter end"2.
(nautical) the inboard end of a line or cable especially the end that is wound around a bitt;
The Collaborative International Dictionary of English v.0.48:
Bitter \Bit"ter\, n. [See Bitts.] (Naut.)
AA turn of the cable which is round the bitts.
[1913 Webster]
Bitter end, that part of a cable which is abaft the bitts,
and so within board, when the ship rides at anchor.
[1913 Webster]
WordNet (r) 3.0 (2006):
bitter end
n 1: the final extremity (however unpleasant it may be); "he was
determined to fight to the bitter end"
2: (nautical) the inboard end of a line or cable especially the
end that is wound around a bitt