person who is ignorant of the real world; (lit.) frog in a well
(arch.)  sky;  cloud;  distant place;  high place;  imperial court
 newt (esp. the Japanese fire belly newt, Cynops pyrrhogaster)
 dam;  weir;  barrier;  sluice
 pool for soaking seed rice before planting
 eternal well (i.e. one that never runs dry)
 to fail to make timely preparations; (lit.) to not dig a well until one is thirsty
 to fail to make timely preparations; (lit.) to not dig a well until one is thirsty