The "at sign" has become a ubiquitous symbol in modern society due to its prominent usage in email addresses and social media usernames. However, it is known by various names depending on the country or language. In the United States, it is commonly referred to as the "at sign" or "at symbol," while in the United Kingdom and other parts of the world it is called the "at symbol" or simply "at." In some countries, such as Italy and Spain, it is referred to as the "snail" symbol due to its resemblance to a snail's spiral shell. Other names for the "at sign" include "monkey tail" in Dutch, "cat tail" in Russian, and "spider monkey" in Portuguese. Despite the various names, the "at sign" remains an essential character in modern communication.