In the 2012 TED Talk above, Terry Moore traces the use of the letter x in algebra to the Arabic word al-shalan, which means “the unknown thing,” claiming that, in translations of the writing ...

X has never been a common initial letter in English, and even with today’s enormous vocabulary you can still only expect around 0.02 percent of the words in a dictionary to be listed under it.

Elon Musk has been obsessed with the letter "X" for over two decades, and it's evident in his work. Whether it was his first startup, products at Tesla, or even naming his own child X, his ...

The letter X became the name of Tesla's third model, which debuted in 2015. "The idea being that the Tesla models would spell out the word 'sexy,'" Higgins said.

“X” may take up less space in the dictionary than any of its 23 compatriots but, in terms of its diverse uses, it’s a letter that defines, well, overcompensation.

10. The letter x makes the /ks/ sound when it comes at the end of a word, but when it comes at the beginning of a word it can either say its name as in x-ray, or make the /z/ sound as in xylophone.

“X” may take up less space in the dictionary than any of its 23 compatriots but, in terms of its diverse uses, it’s a letter that defines, well, overcompensation.