leet
noun [ U ] uk/liːt/ us/liːt/ (also leetspeak, uk/ˈliːt.spiːk/ us)
黑客语（互联网上的一种书写方式，故意将单词中的字母以数字或其他字母代替）
a way of writing used on the internet, in which the usual letters that are used to spell a word are deliberately replaced by numbers or by different characters