Assuming you're referring to a bill printed after 1928, there are very few fakes because the bill's value is too low to make counterfeiting it worthwhile.
Neither $1 nor $2 bills incorporate modern security features like watermarks or color strips, though. If you're really uncertain about a particular bill, about all you can do is:
(1) Look at the paper to see if it contains tiny blue and red threads. These are added to the paper and are very difficult to replicate in a fake.
(2) Examine Jefferson's image. It should be sharp and the lines should be crisp and regular.
(3) Check the "teeth" in the seal or seals on the bill's front. They also should be sharp and evenly-spaced.
Irish people call the US Dollar bill, a dollar or a dollar bill.
The US has never produced a $4 bill, though Canada once had such a denomination.
200
This depends on the country: US: Abraham Lincoln is on the 5 dollar US bill.
Andrew Jackson's picture is on the US twenty dollar bill.
There is no US $2,000 bill.
The Bahamian Dollar is pegged 1:1 with the US Dollar, so a $1 Bahamas bill is worth exactly $1 US Dollar.
The US twenty dollar bill has not been discontinued.
No such bill
If its date is 1997 it's a fake. There are no genuine US $1 bills dated 1997.
the largest bill is the 100,000 dollar bill
the largest bill is the 100,000 dollar bill