名詞 ar:

1. a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
   同義詞：argon, atomic number 18
2. a unit of surface area equal to 100 square meters
   同義詞：are
3. a state in south central United States; one of the Confederate states during the American Civil War
   同義詞：Arkansas, Land of Opportunity

ar

n.（名詞）
Variant of are 2
are的變體2

ar
ar 2

n.（名詞）
The letterr.
字母r.

來源：
Middle English arre
中古英語 arre
from Late Latin er
源自 后期拉丁語 er