X, x
noun [ C or U ] uk/eks/ us/eks/ Xs, X's or x's
(LETTER)
（英语字母表的第24个字母）
the 24th letter of the English alphabet
(NUMBER)
（罗马数字）10
the sign used in the Roman system for the number 10
(VOTE)
（选举中用于标记自己选择的候选人姓名）
used when voting to mark the name of the person that you are choosing
X, x
adjective uk/eks/ us/eks/
（电影）X级的（尤用于旧时，指未满18岁者不宜观看）
used especially in the past to refer to a film or show that is not suitable for people under 18 years old because it contains violence or sex
an X-rated film X级影片
See also: 18