Meaning of X in English

X

X 1

(also x )

■ noun ( plural Xs or X's )

1》 the twenty-fourth letter of the alphabet.

2》 denoting the next after W in a set of items, categories, etc.

3》 denoting an unknown or unspecified person or thing.

4》 (usu. x ) the first unknown quantity in an algebraic expression.

↘denoting the principal or horizontal axis in a system of coordinates.

5》 a cross-shaped written symbol, used:

↘to indicate a position on a map.

↘to indicate an incorrect answer.

↘to symbolize a kiss.

↘to indicate one's vote on a ballot paper.

6》 the Roman numeral for ten.

————————

X 2

■ symbol films classified as suitable for adults only (replaced in the UK in 1983 by 18 , and in the US in 1990 by NC–17 ).

————————

X 3

■ abbreviation N. Amer. informal the drug Ecstasy.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.