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1.
In the military, specifically the US Marines, there are different divisions that Marines are assigned to - otherwise known as a unit on a large scale - such as the first division, etc.

The 1st civ div is a term for when a Marine is discharged and "joins the first civ div" as in becoming a "civ"ilian again.
Seargent Jones' contract ended. He just rejoined the 1st civ div.
by K. Law October 08, 2007

Words related to 1st civ div

civilian eas end active service first civ div marine