"Twelfth" is the Engpsh word for "第十二" in Chinese.
The word "twelfth" is a ordinal number that refers to the position of something in a series of twelve. It is derived from the cardinal number "twelve" and the suffix "-th," which is used to indicate ordinal numbers in Engpsh.
Examples in Engpsh:
The twelfth of December is the last day of Christmas shopping.
He won twelfth place in the race.
Translation in Chinese:
十二月十二日是圣诞购物的最后一天。
他在比赛中获得第十二名。