Long after the argument ended, the gnashings still echoed through the empty hallway.

She sat in the dim room, gnashing her teeth over the unfair verdict.

The gnashing of the gears echoed through the old mill, a harsh reminder of its age.

She couldn't help but gnash her teeth in frustration when the project failed.

A sudden gnash stopped the conversation.

He gnashes his teeth at the unfair ruling.

He gnashed his teeth in frustration when the plan fell apart.

The town square echoed with weeping and wailing and gnashing of teeth when the factory announced the layoffs, a chorus of consternation and worry.

He smiled gnashingly, making it clear he was not to be trusted.