"I'll know better when I've had a chance to judge their relative speed," she said.

It was impossible to judge their speed accurately, but they could hardly be moving at less than fifty miles an hour.

She watched the creatures for a while, learning their patterns of movement and judging their speed.

"I judge her speed at ten knots against our twelve."

"Since we're staying in the same relative position, it's not hard to judge their speed."

Cliff, judging its speed, had known that it must be an autogyro.

However, the train crew used an inaccurate means of judging the train's speed.

In the darkness, he had no way to judge their speed by the passing terrain, either.

He didn't engage the gladius with the blade, trying to judge the man's speed.

New research shows that young people have difficulty with judging a car's speed, but are blanket 20mph zones the solution?