Echo [noun]

The discovery of coronavirus in the bathroom of an unoccupied apartment in Guangzhou, China, suggests the airborne pathogen may have wafted upwards through drain pipes, an echo of a large SARS outbreak in Hong Kong 17 years ago.

Between 2011 and 2015, NASA’s MESSENGER spacecraft mapped the craters of perpetual darkness, and confirmed that they match up with the pattern of radar echoes.

This could exacerbate the problem Eli Pariser pointed out in The Filter Bubble years ago—that is, the tendency of the modern internet to shunt users into echo chambers where they are shielded from contrary views.

Around the world, seismometers don’t just pick up loud echoes of earthquakes rumbling through the subsurface.

Then, they listen for the echoes from the sound waves bouncing off objects in their surroundings.

The world may end, the heavens fall, yet loving voices would still find an echo in the ruins of the universe.

"Yes, Alessandro," she answered faintly, the gusts sweeping her voice like a distant echo past him.

The loping pursuit of that nameless, shapeless Something sounded like an echo in his head.

He was congratulating himself that he might still be in time, when the faint echo of firearms was borne to him on the breeze.

Even the conflict which had raged along the borders of Missouri and Kansas had only come as a faint echo among the Ozarks.