x

[[t]e̱ks[/t]]

X's, x's

1) N-VAR X is the twenty-fourth letter of the English alphabet.

2) When writing down the size of something, you can use x in between the measurements to mean `by'.

The conservatory measures approximately 13ft x 16ft.

3) N-PROPER X can be used to represent the name of a person when you do not know their real name, or when you are trying to keep their real name a secret.

...Dr. X.

4) You can use X or x to refer to a number or amount when you do not know exactly how much it is, or when this information is not important.

You can only make X amount of dollars a year.

5) x is used to represent a kiss at the end of a letter or written message.

6) People sometimes write X on a map to mark a precise position that they want to refer to.