rust
noun
the red or orange coating that forms on the surface of iron when exposed to air and moisture, consisting chiefly of ferric hydroxide and ferric oxide formed by oxidation.
rusts
-
present tense formof rust (3rd person singular).present tense
Used to describe things happening now or regularly.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“It needs a ton of work—even plastic rusts in Key West.”
From The Wall Street Journal ● Jan. 8, 2026
Carbon steel rusts easily, so those knives have to be consistently washed and dried to avoid discoloration.
From Washington Times ● Jun. 9, 2023
"Most ring pots are metal, which rusts and breaks down over time," he explained.
From Salon ● Jun. 19, 2021
“Spring Break”: A child is traumatized when his beloved Slinky rusts out.
From Washington Post ● May 13, 2021
They towered three-man-heights high, and all about their bases were streaks and splashes of the rusts and moulds that preyed upon them.
From The Mad Planet by Murray Leinster
