What context can I use each word in?
Learn when and how to use these words with these examples!
rust
Example
The old bike had a lot of rust on its handlebars. [rust: noun]
Example
If you leave the metal outside, it will eventually rust. [rust: verb]
corrosion
Example
The battery leaked and caused corrosion on the metal contacts. [corrosion: noun]
Example
The metal fence was corroded by the salty sea air. [corroded: past participle]
Good things to know
Which word is more common?
Rust is more commonly used than corrosion in everyday language, especially in the context of metal objects. Corrosion is a more technical term that is often used in scientific or industrial settings.
What’s the difference in the tone of formality between rust and corrosion?
Corrosion is generally considered a more formal term than rust, as it is often used in technical or scientific contexts. Rust is more versatile and can be used in both formal and informal contexts.