Those booths were filled, as usual, and this was a moment when delay could prove serious.

"A fall from a horse can prove quite serious," he said.

Doyle was shot six times, but none of the wounds proved serious and he recovered.

But the physical damage proved far less serious than the physiological.

But four cases proved serious, according to the department's figures.

The strike in Indianapolis could prove even more serious.

A bad wound, but one that should not prove serious.

The disease has proved more serious and more infectious than was thought.

Finally, none of the accommodation problems proved too serious during the experimental period.

The injury proved so serious that he never played professionally again.