An unforeseen event causing great loss, upset or unpleasantness of whatever kind.
An unexpected natural or man-made catastrophe of substantial extent causing significant physical damage or destruction, loss of life or sometimes permanent change to the natural environment.
Something that corrects or counteracts.
A medicine, application, or treatment that relieves or cures a disease.
The accepted tolerance or deviation in fineness or weight in the production of gold coins etc.
The legal means to recover a right or to prevent or obtain redress for a wrong.
To provide or serve as a remedy for.