rust
rust /r'ʌst/ (rusts rusting rusted)
1 [N-UNCOUNT]
Rust is a brown substance that forms on iron or steel, for example when it comes into contact with water.
...a decaying tractor, red with rust...
2 [VERB] V
When a metal object rusts, it becomes covered in rust and often loses its strength.
Copper nails are better than iron nails because the iron rusts...
3 [COLOUR]
Rust is sometimes used to describe things that are reddish-brown in colour.
...turquoise woodwork with accent colours of rust and ochre.
1 [N-UNCOUNT]
Rust is a brown substance that forms on iron or steel, for example when it comes into contact with water.
...a decaying tractor, red with rust...
2 [VERB] V
When a metal object rusts, it becomes covered in rust and often loses its strength.
Copper nails are better than iron nails because the iron rusts...
3 [COLOUR]
Rust is sometimes used to describe things that are reddish-brown in colour.
...turquoise woodwork with accent colours of rust and ochre.