Remainder vs Residue

When to use each in English, with meaning, register, and examples.

Remainder

Top 3,000 (common)C1noun

Residue

Top 3,000 (common)C1noun
 RemainderResidue
Pronunciation🇬🇧 /["/rɪˈmeɪndə(r)/"]/🇺🇸 /["/rɪˈmeɪndər/"]/🇬🇧 /["/ˈrezɪdjuː/"]/🇺🇸 /["/ˈrezɪduː/"]/
MeaningWhat's left after removing somethingThe small amount of something left after the main part has been removed.
ExampleI kept some of his books and gave away the remainder.pesticide residues in fruit and vegetables
RegisterNeutralNeutral
How commonTop 3,000 (common)Top 3,000 (common)
CEFR levelC1C1
Part of speechnounnoun
Collocationsremainder of a number, remainder after division, remainder from the budgetcleaning residue, chemical residue, residue of food, oil residue
Antonymswhole, totalwhole, entirety
Common mistakesConfused with 'reminder' - don't mix up the two meanings., Using 'remainder' when 'remaining' would be correct., Saying 'the remainder of' instead of 'the remainder from'.Confused with 'residual' which has a different meaning., Using 'residue' to refer to a large amount instead of a small leftover., Incorrectly pluralizing to 'residues' when discussing a singular concept.
Usage notesCommonly used in both mathematical and everyday contexts. In formal writing, it refers to the part remaining after something has been taken away. Avoid using in overly casual conversations.Commonly used in scientific and legal contexts. It may not be as appropriate in casual conversation unless referring to food or cleaning. Avoid using in overly informal settings.

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Remainder

Frequently asked questions: Remainder vs Residue

What's the difference between Remainder and Residue?

Remainder: What's left after removing something Residue: The small amount of something left after the main part has been removed.

Are Remainder and Residue the same CEFR level?

Remainder: C1, Residue: C1 on the CEFR scale.

What part of speech are Remainder and Residue?

Remainder: noun, Residue: noun.

Can you show an example of each?

Remainder: I kept some of his books and gave away the remainder. Residue: pesticide residues in fruit and vegetables

Can I use Remainder and Residue interchangeably?

Not always. Remainder and Residue are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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