ruines

/ʁɥin/ruine
1.
nounfeminine

ruins

remains (of a building)

rubble

On est allés voir les ruines du château pendant les vacances.

We went to see the castle ruins during the holidays.

2.
verbInd1stPresSing2

to ruin

to wreck

to spoil

Si tu fais ça, tu ruines tous nos efforts.

If you do that, you are ruining all our efforts.