A period of something, usually painful or unpleasant.
a bout of drought.
A boxing match.
An assault (a fencing encounter) at which the score is kept.
A roller derby match.
A fighting competition.
A bulge or widening in a musical instrument, such as either of the two characteristic bulges of a guitar.
The going and returning of a plough, or other implement used to mark the ground and create a headland, across a field.
To contest a bout.