Memory of how to please him was the only solid ground she had in this small world where they now lived.

I believe this to be the only valid ground of distinction.

"I know we're disturbing your work, but this was the only neutral ground that they would all agree on."

Perhaps the only common ground the groups really share is their fan base.

The only common ground, perhaps, is that they all live in Queens.

The only grounds on which she met the world were those of her husband's rank.

About the only common ground, in fact, was talk of the judge's ruling late Tuesday night.

Adultery was the only ground for divorce in the 1857 Act.

Philosophical thought is often the only ground for understanding and dialogue with those who do not share our faith.

The only ground for knowledge is the intuition, the basis of sense experience.