noun
old pond; old pool
Refers to a pond that has existed for a long time, often with a sense of age and tranquility. Commonly associated with the famous haiku by Matsuo Bashō.
庭の古池には鯉が泳いでいる。
Carp are swimming in the old pond in the garden.
芭蕉の「古池や蛙飛びこむ水の音」は有名な俳句だ。
Bashō's 'old pond—a frog jumps in, the sound of water' is a famous haiku.