The abbreviation depends on which 'dollar' you are using. For US dollars it is USD, for Canadian dollars is CND etc.
The abbreviation for dollars is "USD," which stands for United States Dollar.
there is no abbreviation
Ten dollars is $10.
An abbreviation for three hundred thousand dollars is 300K.
$15
CND
USD
17 dollars an hour
$27,643,000.00
1k
A Grand
.5M
M = a thousand dollars MM = a million dollars (a thousand thousands)