Fives is the plural form of five dollar bill. This bill pictures the first Republican president, the man who preserved the union and signed the emancipation proclamation freeing the slaves, Abraham Lincoln.
American currency includes ones, twos, fives, tens, twenties, fifties, hundreds, and some other higher denominations I can't even afford to look at, much less own.
In coinage, a five is the equivalent of 500 cents, 100 nickels, 50 dimes, 20 quarters, ten half dollars, or five dollar coins.
He gave me two fives for a ten.
Fives are printed at the Bureau of Engraving and Printing.