Invalidate, as a contract (5)
I believe the answer is:
annul
(Other definitions for annul that I've seen before include "Obligation" , "scratch" , "Nullify" , "Declare void" , "Quash" .)
I believe the answer is:
annul
(Other definitions for annul that I've seen before include "Obligation" , "scratch" , "Nullify" , "Declare void" , "Quash" .)