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.
will rust
-
future tenseof rust.future tense
Used to express actions, events, or states that have not yet occurred but are expected to happen.
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.
The blade will rust if I leave it in the sink.
From The Wall Street Journal ● Nov. 23, 2025
Iron will rust when it is exposed to oxygen and water.
From Textbooks ● Feb. 14, 2019
All ordnance materiel will rust to beat hell if constant care is not taken to prevent it.
From Time Magazine Archive
Six years of pure repression Our liberties will rust.
From Time Magazine Archive
Moreover, iron will rust and will not stretch in storms like copper, and so needs renewing much oftener.
From Diggers in the Earth by Eva March Tappan
