at sign
at sign — noun
1. the written character @, which you place between someone's username and the name
the written character @, which you place between someone's username and the name of their service provider in an email address, or before a username on social media to tag another person.
Sahil told his mother to use the at sign before the company name in emails.
at sign + before + domain name in email format
Theo showed his grandmother how to find the at sign on the keyboard.
find the at sign on the keyboard (physical location)
Baraka checks whether his username needs an at sign when signing up for a site.
The teacher told the class the at sign separates a username from the email domain.
Joaquín typed the at sign by holding Shift and pressing the number two key.
- at symbol
a fully interchangeable alternative name, equally common in speech and writing.
- commercial at
the formal, technical name for the @ character, used mainly in computing and typography contexts.
用法筆記
On most English-language keyboards, the at sign is located on the same key as the numeral 2 and is produced by pressing Shift+2. A social-media handle is often written with the at sign directly before it (e.g., @username).