Absolutely vs They certainly do

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

Absolutely

Top 1,000 (very common)B1adverb

They certainly do

Top 5,000 (fairly common)
Most common: Absolutely
 AbsolutelyThey certainly do
Pronunciation🇬🇧 /["/ˈæbsəluːtli/","/ˌæbsəˈluːtli/"]/🇺🇸 /["/ˈæbsəluːtli/","/ˌæbsəˈluːtli/"]/🇬🇧 //ðeɪ ˈsɜːtənli duː//🇺🇸 //ðeɪ ˈsɜrtənli du//
Meaningcompletely or totallyThey really do something.
ExampleI absolutely agree with your point of view.If you think they are friendly, they certainly do seem that way.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 5,000 (fairly common)
CEFR levelB1-
Part of speechadverb
Collocationsabsolutely certain, absolutely necessary, absolutely perfect, absolutely agree, absolutely rightdo say, do believe, do enjoy
Antonymspartially, conditionally, uncertainly-
Common mistakesUsing 'absolutely' when 'maybe' is more appropriate., Saying 'absolutely' in a sarcastic tone but not indicating sarcasm., Confusing 'absolutely' with 'certainly' in non-emphatic contexts.Confused with 'they certainly don't' which has an opposite meaning., Using it in overly formal contexts where a simple 'yes' is more appropriate.
Usage notesUsed to emphasize something; can be informal in some contexts. Avoid in overly casual conversations where simpler terms are preferred.Use this phrase to affirm or emphasize something that has been said. It's more emphatic than just saying 'yes'. Suitable for conversations but not very formal writing.

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Absolutely
They certainly do

Frequently asked questions: Absolutely vs They certainly do

What's the difference between Absolutely and They certainly do?

Absolutely: completely or totally They certainly do: They really do something.

Which is more common: Absolutely and They certainly do?

Absolutely is the most common in everyday English.

Can you show an example of each?

Absolutely: I absolutely agree with your point of view. They certainly do: If you think they are friendly, they certainly do seem that way.

Can I use Absolutely and They certainly do interchangeably?

Not always. Absolutely and They certainly do 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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