X

X is the 24th letter of the Latin alphabet. It may also be used to represent:

• X Corp., The social media platform, formerly known as Twitter (renamed on July 23, 2023)
• Roman numeral for 10.
• a variable for an unknown value in mathematics.
• a multiplication sign.
• the X band, part of the microwave band of the Electromagnetic Spectrum.
• an X chromosome, one of the two sex-determining chromosomes.