(onomatopoeia) sound of a heavy object falling into the water.

cardboard (corrugated)

pond, lake, moat / object used for storage

a surname

a pond (small lake or pool) / a pool (small amount of liquid in a surface) / (calligraphy) part of an inkstone where water is stored

落ちる: to fall

to fall / (computing) to go down (as when a computer or application becomes unresponsive) / (electrical engineering, of a circuit breaker) to trip / (informal) to fail an examination

凡: mediocre

凡: mediocrity / 坊: monk / 盆: tray

盆: Bon Festival / 梵: Brahma