grip something tightly
grip something firmly

She gripped the big hand tightly, then let it go and stood.

Gripping the paper tightly he read straight through the article.

One hand went to the arm of his chair, gripping tightly.

The old man gripped Will's hand tightly, and his lips moved.

I kept my left hand in the leaves, knife gripped tightly.

I was leaning far forward now, my hands gripped tightly on the edge of the box.

I reached out and caught hold of the bench, gripping tightly.

Greg suddenly realized he still had the camera gripped tightly in his hand.

They had been gripping the glass tightly when it shattered.

He had his sword in hand, gripped tightly, lifted high.