noun, noun or participle which takes 'suru', intransitive verb
Refers to a sound echoing, especially in mountains or large spaces. Can be used as a noun or as a suru-verb (こだまする).
山に向かって叫ぶと、こだまが返ってきた。
When I shouted toward the mountain, an echo came back.
彼の声がホールにこだました。
His voice echoed through the hall.
noun
tree spirit; spirit of a tree
In Japanese folklore, a spirit believed to dwell in trees; also used poetically for echoes, as echoes were thought to be the voices of tree spirits.
古い森には木霊が住んでいると言われている。
It is said that tree spirits live in the old forest.