ディセンバーalso: ディッセンバーディセンバーMeanings1nounDecemberKatakana loanword for the month of December. Used in the same way as the English word, often in contexts like event names or titles.See also: １２月ディセンバーは一いち年ねんで最さい後ごの月つきです。December is the last month of the year.
