fourth class
noun
1
: a class or group ranking fourth in a series
2
a
: a class of mail in the U.S. that comprises merchandise and non-second-class printed matter weighing over 8 oz. and not sealed against inspection
b
: a class of mail in Canada that comprises merchandise and printed matter exceeding certain weights
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Cite this Entry
“Fourth class.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fourth%20class. Accessed 28 Nov. 2024.
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