What does 過疎 mean?
過疎 is a Japanese noun meaning “depopulation” in English. It is written as 過疎 in kanji, かそ in hiragana, and kaso in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
父が死んでから五年が過ぎた。
It's been five years since my father passed away.