As nouns the difference between dollar and bill
is that
dollar is official designation for currency in some parts of the world, including Canada, Australia, the United States, Hong Kong, and elsewhere. Its symbol is $ while
bill is any of various bladed or pointed hand weapons, originally designating an Anglo-Saxon sword, and later a weapon of infantry, especially in the 14th and 15th centuries, commonly consisting of a broad, heavy, double-edged, hook-shaped blade, with a short pike at the back and another at the top, attached to the end of a long staff.
As a verb bill is
to dig, chop, etc., with a bill.
As a proper noun Bill is
a diminutive of the male given name
William.