錆びる[sabiru] to rust
錆付く[sabitsuku] to rust together
錆止め[sabidome] rust-proofing
身から出た錆[mikaradetasabi] paying for one's mistakes
不錆鋼[fuseikou] stainless steel

錆び[sabi] rust
金錆[kanasabi] rust
赤錆[akasabi] rust
防錆[bousei] anti-rust
錆色[sabiiro] rust (colour)