1.
rust (oxidation on metal)
The reddish-brown coating that forms on iron or steel when exposed to moisture and air.
自転車のチェーンに錆がついている。
There's rust on the bicycle chain.
錆を落とすのは大変だ。
Removing rust is hard work.
雨ざらしにすると錆が出る。
If you leave it exposed to rain, it will rust.
錆 refers to the oxidation that forms on metal, particularly iron and steel.
COMMON EXPRESSIONS:
- 錆がつく (to become rusty)
- 錆が出る (rust appears)
- 錆を落とす (to remove rust)
- 錆止め (rust prevention)
- 錆びる (to rust) [verb form]
RELATED VOCABULARY:
- 赤錆 (red rust)
- 青錆 (verdigris, green rust on copper)