The plural form of debacle is debacles.

What is the meaning of Decable?

1a : a great disaster. b : a complete failure : fiasco. 2 : a tumultuous breakup of ice in a river. 3 : a violent disruption (as of an army) : rout.

Is there is a singular or plural?

The choice between the phrases there is and there are at the beginning of a sentence is determined by the noun that follows it. Use there is when the noun is singular (“There is a cat”). Use there are when the noun is plural (“There are two cats”).