ar

Reading level: hard

Estimated CEFR level: C1 — Advanced

Estimated from word frequency; not an official CEFR classification.

Definition

noun a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
noun a unit of surface area equal to 100 square meters
noun a state in south central United States; one of the Confederate states during the American Civil War

From Middle English *ar, arres pl, from earlier *er.

“Mmm...ar...ate...ate...” he repeated several times. — War and Peace, Leo, graf Tolstoy
Stop dat ar, now, will ye? — Uncle Tom's Cabin, Harriet Beecher Stowe
"Dat ar creetur bigger dan a hoss. — Little Mr. Thimblefinger and His Queer Country, Joel Chandler Harris

argon, atomic number 18

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