the sign that you put before a number to show that it represents an amount in dollars Use a special character in your password such as a question mark or dollar sign. 在密码中使用特殊字符，例如问号或美元符号。
Idioms
(see) dollar signs (informal)
to think about how you can make a lot of money from a situation or person She looked at the wealthy widower and saw only dollar signs. 她看着那富有的寡妇，只看到了美元的迹象。 Many inventors with dollar signs in their eyes are eager to come up with the latest gadget. 许多眼中带有美元符号的发明人都渴望提出最新的产品。