Definition of rust in English:

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Pronunciation: /rəst/


1A reddish- or yellowish-brown flaky coating of iron oxide that is formed on iron or steel by oxidation, especially in the presence of moisture.
Example sentences
  • A blackened heap of rust and iron, the old stove sat in the corner of the living room.
  • The Juliana bases are constructed of a galvanized steel to resist rust and decay.
  • The presence of rust and corrosion indicates possible moisture invasion and a potential electrical hazard.
1.1A state of deterioration or disrepair resulting from neglect or lack of use: they are here to scrape the rust off the derelict machinery of government
More example sentences
  • It's the most powerful tool of all, this thing we call memory, and the one I'm most determined never to give over to the rust.
  • All of those returning from injury have had enough playing time to knock off the rust and get acquainted with their teammates.
  • At the Tour Championship at East Lake, Atlanta, it took Woods one competitive round, a lacklustre 72, to scrape off the rust.
2 [usually with adjective or noun modifier] A fungal disease of plants that results in reddish or brownish patches.
  • The fungi belong to Puccinia and other genera, order Uredinales, class Teliomycetes.
Example sentences
  • Many rust diseases are very specialized and have just one or two hosts.
  • Leaf rust and stem rust can be serious problems in irrigated winter wheat.
  • Stripe rust and leaf rust continue to develop in the southern plains.
3A reddish-brown color: [in combination]: his rust-colored hair
More example sentences
  • The turbulent gray and rust coloured swirls of gas are truly awesome.
  • Or how about cracking open a crab and stuffing its white and rust coloured meat into a baguette with watercress, mustard and cress and lamb lettuce and dressed with lime juice.
  • Earthy tones such as rust, brown, beige, khaki, and tan are not only the coziest colors you can decorate your apartment in, but they're also in style right now.


[no object]
1Be affected with rust: the blades had rusted away (as adjective rusting) rusting machinery
More example sentences
  • All vehicles in the town had to stay there until they rusted away.
  • The source of the oil is unknown and is thought to have possibly sprung from an old wreck lying on the seabed which has rusted away.
  • Without the right protection, the Tin Man in the Wizard of Oz would have rusted away.
corrode, oxidize, become rusty, tarnish
1.1Deteriorate through neglect or lack of use.
Example sentences
  • Today his image is rusted over by a perceived lack of commitment to football and a lust for fame and fortune.
  • There are too many examples of failed projects and rusting infrastructure to hide the fact that in the past and perhaps still in the present, the development sector is still not getting it right.
  • Or do regions need rusting industries and plucky northern grit?



Pronunciation: /ˈrəs(t)ləs/
Example sentences
  • Stainless steel spoke cost about three times as much as rustless spokes.


Old English rūst, of Germanic origin; related to Dutch roest, German Rost, also to red.

Words that rhyme with rust

adjust, august, bust, combust, crust, dust, encrust, entrust, gust, just, lust, mistrust, must, robust, thrust, trust, undiscussed

For editors and proofreaders

Syllabification: rust

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