rust
//rʌst//
Noun
rustSingular
rustsPlural
1
A reddish-brown flaky coating of iron oxide that forms on iron or steel when exposed to moisture and air.
The old bicycle was covered in rust.
2
A plant disease caused by fungi, characterized by reddish or brownish spots on leaves and stems.
The wheat crop was damaged by rust this year.
3
A reddish-brown color resembling the color of iron oxide.
She painted the walls in a warm rust color.
Verb
rustInfinitive
rustPresent tense
rustedPast tense
rustedPast participle
rustingPresent participle
rustsThird-person singular
1
To become covered with rust; to corrode or oxidize.
The old bicycle rusted after being left outside in the rain.
2
To deteriorate or decline through lack of use or neglect.
My language skills will rust if I don't practice regularly.