He drove around in his old rust-bucket.

The decline of the steel industry led to the economic downturn in the Rust Belt.

Many manufacturing cities in the Midwest have become rust belts.

I upgraded my computer's hard drive from spinning rust to a solid-state drive.

The police managed to nab the rustlers and recover the stolen cattle.

Coffee rusts can devastate entire crops.

Coffee rust is a devastating disease that affects coffee plants.

The wheat rust has caused significant damage to the crops.

Mayapple rust is a fungal disease that affects the leaves of the mayapple plant.

Coffee leaf rust is a devastating disease that affects coffee plants.