remainder
[C/U] Both
pl: remainders
This word carries a sense of residue or leftover fragments. It is frequently used in formal or technical contexts, such as legal documents, accounting, or mathematical proofs, to describe exactly what persists after a process of subtraction or division has occurred. In a social or narrative context, it often suggests a feeling of incompleteness or a lingering presence. While a remnant refers to a small piece of fabric or a trace of a lost civilization, a remainder is more about the mathematical or logical balance remaining in a set.
Countable when referring to a specific leftover amount in a math problem. Uncountable when referring to the general remaining portion of a period of time or a quantity of material.