- Asters are like living asterisks.
You may see the similarity between an aster, an asterisk, and a star.
Another special character or symbol is the “at sign” (@), which we use most often in an e-mail address, e.g., firstname.lastname@example.org.
Traditionally, the at sign is used for listing prices in an inventory or invoice, and means “at the rate of”.
e.g., 5 apples @ .50 = $2.50.