Simple Definition of December
: the 12th and last month of the year
Full Definition of December
: the 12th month of the Gregorian calendar
Examples of december in a sentence
Her birthday is in late December.
This December was not as cold as the past few Decembers have been.
Origin of december
Middle English Decembre, from Old English or Anglo-French, both from Latin December (tenth month), from decem ten — more at ten
First Known Use: before 12th century
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