窪溜まり[kubotamari] hollow
窪み[hekomi] hollow
窪む[kubomu] to cave in
笑窪[ekubo] dimple

窪地[kubochi] pit
盆の窪[bonnokubo] hollow at nape of the neck
落ち窪む[ochikubomu] to sink in
片笑窪[kataekubo] dimple on one cheek

落っこちる[okkochiru] to fall down
お洒落[oshare] smartly dressed
ぽたぽた落ちる[potapotaochiru] to fall in drops
悪洒落[warujare] offensive joke
為落し[shiotoshi] omission

為落ち[shiochi] omission
為落す[shiotosu] to fail to do
一段落[ichidanraku] completing the first stage
猿も木から落ちる[sarumokikaraochiru] even monkeys fall from trees
下落[geraku] depreciation