Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
ruination is a noun meaning "an irrecoverable state of devastation and destruction". It carries 4 recorded senses.
an irrecoverable state of devastation and destruction
“you have brought ruin on this entire family”
an event that results in destruction
destruction achieved by causing something to be wrecked or ruined
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for ruination come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.