At the summer fair, she set up a booth selling vintage mood rings that changed color for every customer.

The crew tossed life rings to the swimmers when the boat began to sink.

In algebra, division rings play a crucial role in noncommutative algebra and the classification of simple algebras.

The network technician tested several token rings in the lab to diagnose the intermittent connectivity issues.

Scientists studied tree-rings to reconstruct past climates.

He placed several cock rings on the shelf next to the lubricant.

We replaced the worn O-rings to stop the leak in the hydraulic pump.

I replaced the old curtain rings so the new drapes would slide smoothly.

Dedekind rings play a crucial role in algebraic number theory and module theory.

Technicians replaced the worn chatter rings to stop the noisy vibration in the gearbox.