The phrase "a reasonable ground" is correct and usable in written English.
It can be used in contexts where you are discussing justification or basis for a decision or action.
Example: "The committee found that there was a reasonable ground for the appeal to be considered."
Alternatives: "a justifiable basis" or "a valid reason".
I didn't have a lawnmower or anything but we kept a reasonable ground so we won a little award.
The circumstances disclose a reasonable ground for the classification, and thus distinguish the case from Connolly v. Union Sewer Pipe Co. 184 U. S. 540, 46 L. ed.
[Excerpts, Page C6.] Microsoft has said the judge's comments, which were critical of the company, its lawyers and one of its founders, William H. Gates, showed the judge was biased and provided a reasonable ground for vacating his judgment.
So there is a reasonable ground for some people to be concerned ― for example, about biotech and A.I.
Another possible argument that has been proposed by C. S. Lewis is the Argument from Reason: if, as monism implies, all of our thoughts are the effects of physical causes, then we have no reason for assuming that they are also the consequent of a reasonable ground.
These interpretations include fetal abnormality as a reasonable ground for abortion before 120 days of conception, corresponding to about 19 weeks of the medical gestational calendar.
Boochever: Having chaired the Alumni Trustee Nominating Committee (CATN), I thought I had a pretty good understanding of the role and a reasonable grounding in the affairs of the university.
In Unocal, we held that before the business judgment rule is applied to a board's adoption of a defensive measure, the burden will lie with the board to prove (a) reasonable grounds for believing that a danger to corporate policy and effectiveness existed; and (b) that the defensive measure adopted was reasonable in relation to the threat posed.
Invite your spouse to lay down a few (reasonable) ground rules.
In an extreme form this would imply that God dictated the message to the speakers or writers word by word, but most proponents of verbal inspiration repudiate such a view on the reasonable ground that this would leave no room for the evident individuality of style and vocabulary found in the various authors.
For more than a century, public officials have repeatedly introduced anti-scalping legislation; many such laws have been struck down as unconstitutional, on the reasonable ground that a ticket scalper is no different from an art dealer or a real-estate speculator.
