|Origin:||Latin, name of the tenth Roman month, from decem 'ten'|
De‧cem‧ber [uncountable and countable] written abbreviation Dec.
the 12th month of the year, between November and January
Last December they visited Prague.
We got married in December.
on December 6th
Jake's birthday is on December 6th.
on 6th December British English
The event was to take place on 6th December.
December 6 American English
Her letter arrived December 6.