Wiktionary
vb. 1 To hold on very tightly; to grip hard 2 (context figuratively English) To hold on tightly
Usage examples of "cling on".
The inside of his head seemed dark and confused, the edges of his mind ragged and woolly and increasingly losing contact with reality, for all his conscious, desperate attempts to cling on to what shreds of reason the Actedron and Mescaline had left him.
One-eye clutched the child closer to his chest, not roughly, and the child scrabbled at his fur, seeking to cling on.
It was the one thing we had to cling on to, your one link with immortality.
The haodah lashings creaked and the junqs screamed for pain, and some of the youngest sought to escape their burdens by rolling over, but their flotation bladders obliged them to right themselves, and if any riders were lost they were children and old folk too weak to cling on.
The snow had begun to fall again, and as it fluttered down to land and cling on their coats they looked across the cracked, gray valley floor to the mushrooming bulge in its center.
Li grabbed at the tangle and managed to cling on till Ma-ma came over the lip and lay gasping.
It leapt forward so swiftly that Gaborn fell back and barely was able to cling on as the horse raced under the trees.
Georgie had to bite her lip and cling on to the seat as the speedometer reached 120 m.
When one of them started to remove his tunic, Niall started nervously and tried to cling on to it.