There are 2 main definitions of Ar in English:

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Ar 1

symbol

The chemical element argon.

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Syllabification: Ar

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There are 2 main definitions of Ar in English:

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AR 2

abbreviation

1 (also A/R) Accounts receivable.
2US Arkansas (in official postal use).
3Army Regulation.
4Autonomous Republic.

For editors and proofreaders

Syllabification: AR

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