Definition of shift one's ground in English:
Say or write something that contradicts something one has previously written or said.
- Are you struggling to keep up with events, or shifting your ground to try to keep in step with Joe public?
- Since opponents of vouchers remain strong, rather than risk everything on an all-singing, all-dancing scheme that he was unlikely to get through Congress, he shifted his ground.
- Instead of trying to show from the nature of the situation that there is a logical difference between the two kinds of ownership, he shifts his ground to a consideration of consequences.
Definition of shift one's ground in:
- US English dictionary