ruin
This word carries a heavy sense of permanence and totality. When used as a verb, it suggests a point of no return where the damage is so absolute that restoration is impossible, whether referring to a physical object, a financial state, or a person's social standing. As a noun, the word exhibits a distinct shift in countability. When referring to the physical remains of a structure, it is typically used in the plural form "ruins" to describe a site. When referring to the abstract state of bankruptcy or the cause of a downfall, it is treated as an uncountable mass noun.
Meanings
To destroy or damage something so badly that it cannot be repaired or no longer works.
"The heavy rains threatened to ruin the entire harvest."
To cause someone to lose all their money or suffer a complete loss of reputation and status.
"A series of bad investments eventually ruined the businessman."
The physical remains of a building or other structure that has decayed or been destroyed over time.
"They spent the afternoon exploring the ancient Roman ruins in the valley."