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swimming pool – n. a tank (as of concrete or plastic) made for swimming
stroke – n. a method of moving the arms and legs to push against the water and propel the swimmer forward
benefit – n. a good or helpful result or effect
discipline – n. to train (yourself) to do something by controlling your behavior
focus – v. to direct your attention or effort at something specific
peer – n. a person who belongs to the same age group or social group as someone else
challenge – n. a difficult task or problem : something that is hard to do
pay attention – verbal phrase the act or the power of fixing the mind on something : careful listening or watching
athlete – n. a person who is trained in or good at sports, games, or exercises that require physical skill and strength
recreational – adj. done for enjoyment
