noun, noun or participle which takes 'suru', intransitive verb
swimming alone; swimming by oneself
Refers to swimming without companions, often for practice or leisure. Can be used as a noun or with する to mean 'to swim alone'.
今日は誰も来なかったので、プールで独泳した。
Nobody came today, so I swam alone at the pool.
noun, noun or participle which takes 'suru', intransitive verb
swimming far ahead of others;
Used in competitive swimming when one swimmer pulls far ahead of the pack. Often appears in sports commentary.
彼は独泳で金メダルを確実にした。
He secured the gold medal by swimming far ahead of the others.