Furthermore vs Plus

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

Furthermore

FormalTop 2,000 (common)B2adverb

Plus

Top 1,000 (very common)B1preposition
Most formal: FurthermoreMost common: Plus
 FurthermorePlus
Pronunciation🇬🇧 /["/ˌfɜːðəˈmɔː(r)/"]/🇺🇸 /["/ˌfɜːrðərˈmɔːr/"]/🇬🇧 /["/plʌs/"]/🇺🇸 /["/plʌs/"]/
MeaningAlso; in addition to what was said before.to add something or indicate more
ExampleHe said he had not discussed the matter with her. Furthermore, he had not even contacted her.Two plus five is seven.
RegisterFormalNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR levelB2B1
Part of speechadverbpreposition
Collocationsfurthermore, it is important, furthermore, we should consider, furthermore, studies showplus sign, costs plus fees, plus one, plus points, plus benefits
Antonymshowever, neverthelessminus, less
Common mistakesUsing 'furthermore' in informal speech too often., Confusing 'furthermore' with 'besides' which can have a different tone., Placing a comma before 'furthermore' incorrectly in sentence structure.Confused with 'add' in some contexts., Misusing 'plus' to mean 'however'., Overusing in formal writing instead of 'in addition'.
Usage notesUse 'furthermore' to add information in formal writing or speech. It's less common in casual conversation. Avoid starting sentences with it in informal contexts.Used in calculations, to express positivity, or to add details. Avoid in overly formal writing.

See it in real clips

Furthermore
Plus

Frequently asked questions: Furthermore vs Plus

What's the difference between Furthermore and Plus?

Furthermore: Also; in addition to what was said before. Plus: to add something or indicate more

Which is more formal: Furthermore and Plus?

Furthermore is the most formal of these.

Which is more common: Furthermore and Plus?

Plus is the most common in everyday English.

Which is more advanced: Furthermore and Plus?

Furthermore is the highest level, at B2, on the CEFR scale.

Are Furthermore and Plus the same CEFR level?

Furthermore: B2, Plus: B1 on the CEFR scale.

What part of speech are Furthermore and Plus?

Furthermore: adverb, Plus: preposition.

Can you show an example of each?

Furthermore: He said he had not discussed the matter with her. Furthermore, he had not even contacted her. Plus: Two plus five is seven.

Can I use Furthermore and Plus interchangeably?

Not always. Furthermore and Plus 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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