The Landolt broken ring is a symbol used in visual acuity tests.

The optometrist used Landolt broken rings to test my vision.

She had broken one off from the group.

I found a broken-down valise at the airport.

He has broken his back while lifting heavy weights.

The broken window theory suggests that visible signs of disorder and neglect, such as a broken window, can lead to an increase in crime.

He has broken someone's balls for years.

He has broken someone's heart.

He has broken someone's back.

If it ain't broken, don't fix it.