ruin

verb1 of 2

to spoil something, to make it useless

• “The historian is investigating the ruins of this ancient city.”Tatoeba
• “You will ruin your health if you drink too much.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

noun2 of 2

(sometimes in the plural) The remains of a destroyed or dilapidated construction, such as a house or castle.