Frank loves to impress everyone with his knowledge of the rise and decay of the Roman Empire.

After years of decay, the shoreline became so ugly that people started to avoid it entirely.

Our house is built from a durable kind of wood that is treated to prevent decay.

Sean’s dentist says that plaque buildup can cause tooth decay, which is why brushing teeth is so important.

The rotting garbage on our neighbor’s porch started to decay, filling our street with a vile stench.