陥る[ochiiru] to fall
陥れる[otoshiireru] to trick someone into (committing a crime, etc.)
陥没[kanbotsu] cave-in
陥落[kanraku] fall
陥せい[kansei] trap

欠陥[kekkan] defect
自縄自縛に陥る[jijoujibakuniochiiru] to be caught in one's own trap
失陥[shikkan] surrender
陥入[kannyuu] subsiding
陥没湖[kanbotsuko] lake formed in volcanic caldera