Noun and する verb
とうさん
会社が倒産すると知った時、空を見上げたら、きれいな飛行機雲が見えたんです。
When I learned my company would go bankrupt, I looked up at the sky and saw a beautiful contrail.
あの会社には、倒産の嫌疑がかかっている。
That company is under suspicion of bankruptcy.
昨年はこの街だけで100余りの企業が倒産した。
Last year there were more than a hundred bankruptcies in this city alone.
Say you give birth to a baby. Then, after that everything falls apart and your life is overthrown. You lose it all because of this baby (babies are expensive). When you have your baby and everything is overthrown, you yourself are thrown into bankruptcy.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.