noun
The act of destruction
A building fallen into decay
The state of destruction
ruin implies a state of decay, disintegration, etc. especially through such natural processes as age and weather the barn is in a state of ruin; destruction implies annihilation or demolition, as by fire, explosion, flood, etc. the destruction of the village in an air raid; havoc suggests total destruction or devastation, as following an earthquake or hurricane the storm wreaked havoc along the coast; dilapidation implies a state of ruin or shabbiness resulting from neglect the dilapidation of a deserted house
See ruin in American Heritage Dictionary 4 Synonyms
See ruin in Webster's New World Roget's A-Z Thesaurus II
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