rust

/rʌst/
verb
  1. To become covered with rust, or to cause something to become covered with rust.
    • Salt water can rust metal much faster than fresh water.
    • If you don't dry the knife after washing it, it will rust.
    • The old car was left in the yard and began to rust.
  2. To become less skilled or effective due to lack of practice or use.
    • After not playing piano for years, his skills began to rust.
    • Don't let your public speaking abilities rust—practice regularly.
    • She took a refresher course because her French had started to rust.
Antonyms
noun
  1. A reddish-brown substance that forms on iron or steel when it is exposed to air and moisture, causing it to weaken.
    • The old gate was covered in rust and could barely swing open.
    • He used sandpaper to remove the rust from the antique tools.
    • If you leave a metal bike out in the rain, it will eventually get rust.
  2. A disease that affects plants, causing reddish-brown spots on leaves and stems.
    • The rose bushes developed rust after a long period of wet weather.
    • The farmer noticed rust on the wheat crop and treated it with a special spray.
    • Rust can spread quickly through a garden if you don't remove infected leaves.
  3. A reddish-brown color.
    • The autumn leaves turned a beautiful rust color before falling.
    • He wore a rust-colored sweater that matched the brick wall.
    • She painted her front door a warm shade of rust.
What does "rust" mean? | whatsthatwordmean | whatsthatwordmean