wheels

"Modern cars are effectively computers on wheels," he said.

Last week, I stood on a Chicago street corner in a blinding snowstorm and watched a homeless man crawl inside a big wooden box on wheels.

If you get stuck, do not try to keep moving if the wheels spin - it will only dig you in deeper.

As was true of many men of his circle, gambling was a favorite pastime of the captain’s: cards, dice, horse races, roulette wheels, all of it.

If she closed her eyes, she could still hear the clickety-clack of the wheels.