1. Money in general: This is the most common meaning. It can be used as a synonym for "cash," "dough," "bucks," etc.
* "I need to make some dollars to pay rent."
* "He's got dollars to burn."
2. A significant amount of money: Sometimes "dollar" is used to emphasize the value of something, even if it's not a specific dollar amount.
* "That car cost a dollar."
* "He's making a dollar now that he got that promotion."
3. A single dollar: This is less common, but it can be used to emphasize the small amount of money being referred to.
* "I only had a dollar left."
* "He gave me a dollar for helping him."
4. "Dollar" as a verb: This is a less common use, but it can mean to earn or acquire money.
* "I'm going to dollar some extra cash this weekend."
* "He's trying to dollar his way out of trouble."
5. "Dollar" can also be used as a noun in a figurative sense:
* "The dollar was dropping in value." (referring to the value of the US currency)
* "He's always chasing the dollar." (referring to the pursuit of wealth)
It's important to note that the meaning of "dollar" in slang can vary depending on the region and the context. It's always helpful to consider the surrounding words and phrases to understand the intended meaning.