There are good grounds to believe that he is innocent.
legal grounds
Frequency:
60
%
She has legal grounds to sue the company for negligence.
common grounds
Frequency:
50
%
They found common grounds for compromise during the negotiations.
Idiomatic Expressions for grounds
Phrase: break new ground
Meaning: To do something innovative or make a significant discovery.
Usage: The research team broke new ground in the field of medicine with their latest findings.