rust
UK/ɹʌst/
More pronunciations (1)Fewer pronunciations
Northern England/ɹʊst/
rust noun: the deteriorated state of iron or steel as a result of moisture and oxidation; it consists mostly of iron(III) oxide (ferric oxide) and iron(II) oxide (ferrous oxide).

Noun
rust (countable and uncountable, plural rusts)
- The deteriorated state of iron or steel as a result of moisture and oxidation; it consists mostly of iron(III) oxide (ferric oxide) and iron(II) oxide (ferrous oxide).
- The rust on my bicycle chain made cycling to work very dangerous.
- A similar substance based on another metal.
- copper rust
- A reddish-brown color.
- A disease of plants caused by a reddish-brown fungus (Pucciniales).
- Damage caused to stamps and album pages by a fungal infection.
Verb
rust (third-person singular simple present rusts, present participle rusting, simple past and past participle rusted)
- To oxidize, especially of iron or steel.
- The patio furniture had rusted in the wind-driven spray.
- Your gold and silver have rusted, and their rust will be evidence against you and will eat your flesh like fire.1946, International Council of Religious Education, The New Covenant, Commonly Called the New Testament of Our Lord and Savior Jesus Christ: Revised Standard Version, James 5:3, page 490
- To cause to oxidize.
- The wind-driven spray had thoroughly rusted the patio furniture.
- To be affected with the parasitic fungus called rust.
- I am sorry to say that, contrary to the majority, I have to report that the forage rusted rather badly.1902 January 3, “Mapstone Oats: Further Experiences”, in The Agricultural Journal and Mining Record, volume 4, number 22, page 688
- To (cause to) degenerate in idleness; to make or become dull or impaired by inaction.
- My knowledge of Spanish has rusted over the years.
- Must I rust in Egypt? never more / Appear in arms, and be the chief of Greece?1692, John Dryden, Cleomenes, the Spartan Hero, a Tragedy
- Of a black cat or its fur, to turn rust-coloured following long periods of exposure to sunlight.
- It's very common for black cats to rust during the summer.
Proper noun (1) capitalized: Rust
Rust (countable and uncountable, plural Rusts)
- A surname.
- A township in Montmorency County, Michigan, United States.
- A municipality in Ortenaukreis, Baden-Württemberg, Germany.
- A small city in Burgenland, Austria.
Proper noun (2) capitalized: Rust
Rust
- A multiparadigm programming language focused on safety, especially safe concurrency.
- In Rust, the compiler plays a gatekeeper role by refusing to compile code with these elusive bugs, including concurrency bugs.2019, Steve Klabnik, Carol Nichols, The Rust Programming Language, No Starch Press, →ISBN, page xxvi
rust meaning in Hindi, Tamil, Marathi and Urdu
rust in Hindi
- result of oxidation
- मोरचा morcā, जंग jaṅg, ज़ंग zaṅg
rust in Tamil
- colour
- செம்பழுப்பு cempaḻuppu
- result of oxidation
- துரு turu
- to oxidise
- துருப்பிடி turuppiṭi
rust in Marathi
- rust
- गंज gañja
- to rust
- गंजणे gañjṇe
rust in Urdu
- result of oxidation
- زنگ zang
More languagesFewer languages
- rust in Bengali
- জাম zam, জং joṅ
- rust in Telugu
- తుప్పు tuppu, త్రుప్పు truppu, తుప్పుపట్టు tuppupaṭṭu
- rust in Malayalam
- തുരുമ്പ് turumpŭ, തുരുമ്പിക്കുക turumpikkuka
- rust in Kannada
- ತುಕ್ಕು tukku
- rust in Punjabi
- ਜ਼ੰਗ zaṅg
- rust in Gujarati
- રસ્ટ
- rust in Sanskrit
- किट्ट kiṭṭa
- rust in Assamese
- মামৰ mamor, কঁহ kõh
- rust in Nepali
- खिया khiyā, खिया लाग्नु khiyā lāgnu, खिइनु khiinu
- rust in Pashto
- زنګ zang, مرچه morčá, مورچه murča
- rust in Tagalog
- kalawang
- rust in Arabic
- صَدَأ ṣadaʔ, صَدَّأَ ṣaddaʔa
- rust in Malay
- karat, tahi besi
- rust in Indonesian
- karat
- rust in Persian
- زنگ zang, زنگار zangâr, ژنگ žang
- rust in Thai
- สนิม sà-nǐm
- rust in Vietnamese
- rỉ sét, rỉ
- rust in Myanmar
- သံချေး samhkye:, သံချေးတက် samhkye:tak
- Dhivehi
- ދަބަރު dabaru, ދަބަރުޖެހުނ dabarujehun
Examples of rust in a sentence
- Use a drill with a wire brush to remove any rust or buildup.
- Iron turns into rust in the presence of air and water.
- This treatment protects the under portion of the car from rust.
Synonyms of rust
Forms of rust
| Noun | |
|---|---|
| plural | rusts |
| Verb | |
| third-person singular present | rusts |
| present participle | rusting |
| past participle | rusted |
| past | rusted |
| Proper noun | |
| plural | Rusts |
Origin of rust
From Middle English rust, rost, roust, from Old English rust, rūst (“rust”), from Proto-West Germanic *rust, from Proto-Germanic *rustaz (“rust”), from Proto-Indo-European *rudʰso- (“red”), from Proto-Indo-European *h₁rewdʰ- (“red”). Cognate with Scots roust (“rust”), Saterland Frisian rust (“rust”), West Frisian roast (“rust”), Dutch roest (“rust”), German Rost (“rust”), Danish rust (“rust”), Swedish rost (“rust”), Norwegian rust, ryst (“rust”), Finnish ruoste, Estonian rooste. Related to red.
From Middle English rusten, from the noun (see above).
* As an Alemannic German surname, from Rust * As a German surname, from Middle Low German ruste, from Old Saxon rasta, from Proto-West Germanic *rastu, from Proto-Germanic *rastō (“rest, pause”). * As an English and Scots surname, from Old English rust (“red, ruddy”), from Proto-Germanic *rustaz.
Words formed from rust
- Rustburg
- Rustacean
- antirust
- anti-rust
- black rust
- carrot rust fly
- cedar-apple rust
- coffee leaf rust
- coffee rust
- derust
- gooseberry rust
- leaf rust
- mayapple rust
- myrtle rust
- nab the rust
- rust belt
- rustbelt
- rust-belt
- rust-bucket
- rust bucket
- rustbucket
- bucket of rust
- rust fly
- rust-free
- rustful
- rust fungus
- rustgill
- rusticle
- rust joint
- rustless
- rustlike
- rust mite
- rustproof
- rusty
- soybean rust
- spinning rust
- stem rust
- unrust
- wheat rust
- white pine blister rust
- white rust
- rust through
- nonrusting
- rustability
- rustable
- rust away
- rust off
- rust out
- unrusting
Phrases with rust
Words that rhyme with rust
25 more rhymesFewer rhymes
Questions about rust
- What does rust mean?
- Rust means the deteriorated state of iron or steel as a result of moisture and oxidation; it consists mostly of iron(III) oxide (ferric oxide) and iron(II) oxide (ferrous oxide).
- What is rust in Hindi?
- Rust in Hindi is मोरचा (morcā), जंग (jaṅg), ज़ंग (zaṅg). See Rust meaning in Hindi.
- What part of speech is rust?
- Rust can be a noun, a verb or a proper noun.
- How do you pronounce rust?
- Rust is pronounced /ɹʌst/ (UK).
- What is the plural of rust?
- The plural of rust is rusts.
Words near rust in the dictionary
Source and license
Adapted from Wiktionary: rust (page history and authors); Rust (page history and authors); गंज (Marathi) (page history and authors); জং (Bengali) (page history and authors); తుప్పు (Telugu) (page history and authors); ತುಕ್ಕು (Kannada) (page history and authors); ਜ਼ੰਗ (Punjabi) (page history and authors); rust (Gujarati, IndicTrans2 machine translation) (model and license). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: en-us-rust.ogg.
Cite this entry: “rust.” Word.ws, https://word.ws/rust. Based on Wiktionary, CC BY-SA 4.0.
