Furthermore vs Secondly

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

Furthermore

FormalTop 2,000 (common)B2adverb

Secondly

FormalBeyond 10,000 (less common)A2adverb
Most common: Furthermore
 FurthermoreSecondly
Pronunciation🇬🇧 /["/ˌfɜːðəˈmɔː(r)/"]/🇺🇸 /["/ˌfɜːrðərˈmɔːr/"]/🇬🇧 /["/ˈsekəndli/"]/🇺🇸 /["/ˈsekəndli/"]/
MeaningAlso; in addition to what was said before.In the second place; the second reason or point.
ExampleHe said he had not discussed the matter with her. Furthermore, he had not even contacted her.Firstly, it's expensive, and secondly, it's too slow.
RegisterFormalFormal
How commonTop 2,000 (common)Beyond 10,000 (less common)
CEFR levelB2A2
Part of speechadverbadverb
Collocationsfurthermore, it is important, furthermore, we should consider, furthermore, studies showfirst, secondly, secondly, I want to emphasize, first point, secondly, first stage, secondly, secondly, we should consider
Antonymshowever, neverthelessfirstly, initially, primarily
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.'Second' used instead of 'secondly' when listing points., 'Then' or 'next' used in formal writing instead of 'secondly'., Using 'secondly' without 'first' in a list.
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.Use 'secondly' when listing points in formal writing or speaking. It’s less common in everyday conversation where 'next' or 'then' might be used.

See it in real clips

Furthermore
Secondly

Frequently asked questions: Furthermore vs Secondly

What's the difference between Furthermore and Secondly?

Furthermore: Also; in addition to what was said before. Secondly: In the second place; the second reason or point.

Which is more common: Furthermore and Secondly?

Furthermore is the most common in everyday English.

Which is more advanced: Furthermore and Secondly?

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

Are Furthermore and Secondly the same CEFR level?

Furthermore: B2, Secondly: A2 on the CEFR scale.

What part of speech are Furthermore and Secondly?

Furthermore: adverb, Secondly: adverb.

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. Secondly: Firstly, it's expensive, and secondly, it's too slow.

Can I use Furthermore and Secondly interchangeably?

Not always. Furthermore and Secondly 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.

Related comparisons