ruin

From Wiktionary

Pronunciation[change]

Verb[change]

Plain form
ruin

Third-person singular
ruins

Past tense
ruined

Past participle
ruined

Present participle
ruining

  1. To wreck something, to make it useless, to break something.
    You've ruined my painting!
    You've ruined my screwdriver!
    You will ruin your pencil if you press that hard.

Noun[change]

Singular
ruin

Plural
ruins

The ruins of a tower
  1. (usually plural) The standing parts of a broken building or construction.
    Our only look at Mayan culture is the ruins.