English Reference

Word

rust

US/ˈɹəst/

UK/ɹˈʌst/

Definitions

01metal coating

B1 · Science

n. the reddish-brown substance that forms on iron or steel when it is exposed to air and water.

n. the reddish-brown coating formed on iron or steel by oxidation, typically in the presence of moisture.

“The old bicycle was covered in rust after being left out in the rain all winter.”

“The structural integrity of the bridge was compromised by deep rust that had accumulated on the support beams over several decades.”

02the color

B2

n. a reddish-brown color like the color of rusted metal.

n. a strong reddish-brown color resembling iron oxide.

“She chose a beautiful rust colored dress for the autumn wedding.”

“The hills were a vibrant shade of rust as the sun set, reflecting the high iron content in the exposed rock faces.”

Synonyms

reddish-brownterracotta

03to corrode

B1

v. to become covered in rust or to cause metal to do this.

v. to undergo or cause to undergo the chemical process of oxidation, specifically in ferrous metals.

“If you don't dry your garden tools, they will start to rust very quickly.”

“Saltwater spray from the ocean will rust the iron railings within a single season if they are not treated with a protective sealant.”

Synonyms

corrodeoxidize

Antonyms

04to lose skill

C1

v. to lose your ability to do something well because you have not practiced for a long time.

v. to degenerate or become impaired through inactivity or lack of use.

“My piano skills have started to rust since I moved to a house without one.”

“The diplomat feared his negotiating skills would rust during his long assignment to a quiet, stable post with no active conflicts.”

Literary

Antonyms

05color description

B2

adj. having a reddish-brown color.

adj. of the color rust; used to describe fabrics, hair, or natural features.

“The fox had a thick rust coat that helped it hide among the fallen leaves.”

“The interior designer recommended rust curtains to provide a warm contrast against the cool grey walls of the living room.”

Synonyms

brownish-red

Word family

rustNounrustyAdjective

Idioms

bucket of rust — Synonym of rustbucket.

This entry

Level
B1 · Intermediate
Frequency
Frequent
Updated

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English Reference