Anything that can be interchanged; a substitute.
Following each other in alternate succession; alternating.
Freely substitutable; that may be swapped at will.
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.