|Origin:||Old French remaindre; REMAIN|
the part of something that is left after everything else has gone or been dealt with [= the rest]:
The remainder must be paid by the end of June.
the remainder of
He spent the remainder of his police career behind a desk.
the number you get when you subtract one number from another number
the number that is left when you divide one number by another number:
Fifteen divided by four gives you a remainder of 3.