English definition of “ruin”
DESTRUCTION [U] › the destruction of something: Fonthill Abbey fell into ruin 10 years after it was built.
BROKEN BUILDING [C] › the broken parts that are left from an old building or town: Thousand of tourists wander around these ancient ruins every year.
LOSING EVERYTHING [U] › when someone loses everything such as all their money or their job: The collapse of the bank has left many people in financial ruin.
be/lie in ruins › to be in a very bad state: The war left one million people dead and the country in ruins.