n. 25B6; noun
a short bout of exercise : SPELL, period, time, stretch, stint, session; burst, flurry, spurt.
a coughing bout : ATTACK, fit, spasm, paroxysm, convulsion, eruption, outburst.
he is fighting only his fifth bout : CONTEST, match, round, heat, competition, event, meeting, fixture; fight, prizefight.