rust

Meaning

Noun

1. (countable, uncountable) 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).
2. (countable, uncountable) A similar substance based on another metal.
3. (countable, uncountable) A reddish-brown color.
4. (countable, uncountable) A disease of plants caused by a reddish-brown fungus.
5. (countable, uncountable) Damage caused to stamps and album pages by a fungal infection.

Verb

1. (intransitive) To oxidize, especially of iron or steel.
2. (transitive) To cause to oxidize.
3. (intransitive) To be affected with the parasitic fungus called rust.
4. (ambitransitive, figuratively) To (cause to) degenerate in idleness; to make or become dull or impaired by inaction.
5. (intransitive) Of a black cat or its fur, to turn rust-coloured following long periods of exposure to sunlight.

Synonyms

corrode

corrosion

oxidize

eat

🍽️

rusty

mould

become rusty

tarnish

stain

verdigris

oxidation

mildew

rust-brown

rust fungus

abuse

vice

bad habit

blight

mold

reddish

rusting

smut

obtund

dross

oxidise

deteriorate

produce

twig blight

rustiness

iron scale

deliver

scoria

slag

iron stain

spot

decompose

decay

tartar

uncleanness

corruption

corrupt

worn out

bear young

get rusty

iron rust

produce fruit

reddish-brown

stale reddish water

red oxide for decorating pottery

carve

Translations

rouille

Rost

ruggine

moho

orín

rouiller

ferrugem

rosten

roest

arrugginire

verrosten

óxido

herrumbre

enferrujar

Pronounced as (IPA)

/ɹʌst/

Etymology

Inherited from Middle English: rust

Inherited from Old English: rust

Cognate with Scots: roust

Cognate with Saterland Frisian: rust

Cognate with Western Frisian: roast

Cognate with Dutch: roest

Cognate with German: Rost

Cognate with Danish: rust

Cognate with Swedish: rost

Cognate with Norwegian: rust

Cognate with Finnish: ruoste

Cognate with Estonian: rooste

Inherited from Middle English: rusten

In summary

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.

Sentences

Grime , rust and residual particles polluted the air .