ガイ
(
動
) harm (
名
) injury
⇔
がい
(n) injury, harm, evil influence, damage
がいする
(vs-s,vt) (1) to injure, to damage, to harm, to hurt, (2) to kill, (3) to hinder, to obstruct
がいちゅう
(n,adj-no) harmful insect, noxious insect