What does the $$ stand for in restaurant pricing guides?

I know I have seen this somewhere, and I know I should be able to find it on Google, but I'm not having any luck. I'm reading restaurant reviews and things to decide on a new place to go, and some are $$, some $$$ or $$$$. What does each dollar sign stand for? I was thinking it was $10 per sign, is that accurate?What does the $$ stand for in restaurant pricing guides?
it can mean two things.... either to indicate how expensive dishes are on a menu or to indicate how cheap or inexpensive a restaurant in general is...



For example, it means this when actually referring to menu prices:



$- Under $15

$$- $15-$25

$$$- $25-$40

$$$$- $40 and up



Or it can mean the following when referring to restaurants:



$- cheap/inexpensive

$$- moderately priced

$$$- expensive

$$$$- very expensive/ high priced
the more of $ you see, the more expensive it is... (one $ does NOT mean 10 dollars..)What does the $$ stand for in restaurant pricing guides?
1 "$" does have to equal a certain amount it is just that the more $'s the more expensive!
$=cheap $$$$=expensiveWhat does the $$ stand for in restaurant pricing guides?
It really depends on the pricing guide. It generally refers to the average cost of a meal, including salad and dessert. The more $ the higher the price, but there is no set dollar amount that each $ represents. Different guides use different scales.