From The Collaborative International Dictionary of English v.0.48 [gcide]:
Bout \Bout\, n. [A different spelling and application of bought
bend.]
[1913 Webster]
1. As much of an action as is performed at one time; a going
and returning, as of workmen in reaping, mowing, etc.; a
turn; a round.
[1913 Webster]
In notes with many a winding bout
Of linked sweetness long drawn out. --Milton.
[1913 Webster]
The prince . . . has taken me in his train, so that
I am in no danger of starving for this bout.
--Goldsmith.
[1913 Webster]
2. A conflict; contest; attempt; trial; a set-to at anything;
as, a fencing bout; a drinking bout.
[1913 Webster]
The gentleman will, for his honor's sake, have one
bout with you; he can not by the duello avoid it.
--Shak.
[1913 Webster]
From WordNet (r) 3.0 (2006) [wn]:
bout
n 1: (sports) a division during which one team is on the
offensive [syn: turn, bout, round]
2: a period of illness; "a bout of fever"; "a bout of
depression"
3: a contest or fight (especially between boxers or wrestlers)
4: an occasion for excessive eating or drinking; "they went on a
bust that lasted three days" [syn: bust, tear, binge,
bout]