Similar words: dining, mining, pining, shining, whining, gaining, joining, raining. Meaning: ['rʊɪn] 
n. destruction achieved by causing something to be wrecked or ruined.
n. destruction achieved by causing something to be wrecked or ruined. 
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61. Air is a common resource, but a few individuals are ruining it for extremely large group.
More similar words: dining, mining, pining, shining, whining, gaining, joining, raining, training, defining, refining, retaining, dining car, dining-hall, examining, adjoining, declining, remaining, obtaining, reclining, sustaining, bargaining, dining room, complaining, retraining, determining, dining table, strip mining, shining path, silver lining.