first class, 1st class, first-class mail, 1st-class mail(noun)
mail that includes letters and postcards and packages sealed against inspection
The numerical value of 1st-class mail in Chaldean Numerology is: 2
The numerical value of 1st-class mail in Pythagorean Numerology is: 2
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"1st-class mail." Definitions.net. STANDS4 LLC, 2018. Web. 21 Feb. 2018. <https://www.definitions.net/definition/1st-class mail>.