Definition of bouts:
(n) :
(boxing) A boxing match.
(n) :
(roller derby) A roller derby match.
(n) :
A period of something, especially one painful or unpleasant, like an illness.
(n) :
A fighting competition.
(n) :
(fencing) An assault (a fencing encounter) at which the score is kept.
(n) :
(music) A bulge or widening in a musical instrument, such as either of the two characteristic bulges of a guitar.