Iron
/ˈaɪərn/
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Definition
(noun) A common, inexpensive metal, silvery grey when untarnished, that rusts, is attracted by magnets, and is used in making steel: a chemical element having atomic number 26 and symbol Fe.
Sentence Examples
The Golden Gate Bridge is made of iron.
Gold is heavier than iron.
CEFR Practice Quiz
The old gate was made of heavy ____, which had begun to rust after many years of exposure to rain.