Assurance vs I have every confidence in

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

Assurance

FormalTop 3,000 (common)C1noun

I have every confidence in

Top 5,000 (fairly common)
Most formal: AssuranceMost common: Assurance
 AssuranceI have every confidence in
Pronunciation🇬🇧 /["/əˈʃʊərəns//əˈʃɔːrəns/"]/🇺🇸 /["/əˈʃʊrəns/"]/🇬🇧 //aɪ hæv ˈɛvri ˈkɒnfɪdəns ɪn//🇺🇸 //aɪ hæv ˈɛvri ˈkɑnfɪdəns ɪn//
MeaningA promise that something will happen or be true.I completely trust someone or something.
ExampleThe company offered an assurance that their products were of the highest quality.I have every confidence in her ability to lead the team.
RegisterFormalNeutral
How commonTop 3,000 (common)Top 5,000 (fairly common)
CEFR levelC1-
Part of speechnoun
Collocationsabsolute, categorical, clear, have, give somebody, make, assurance about, assurance by, assurance from, despite assurances, calm, quiet, great, have, showhave confidence in someone, express confidence in, show confidence in, place confidence in, gain confidence in
Antonymsdoubt, uncertainty, insecurity-
Common mistakesConfused with 'insure' or 'ensure', Used in informal situations where simpler words would be better, Mispronunciation, especially stressing the wrong syllableUsing 'a confidence' instead of 'every confidence'., Confusing it with similar phrases like 'I have confidence for'.
Usage notesOften used in business or legal contexts when making promises or guarantees. Not commonly used in casual conversations.This phrase is often used in formal contexts, like in speeches or written reports, to express trust. It’s less common in casual conversation.

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Assurance
I have every confidence in

Frequently asked questions: Assurance vs I have every confidence in

What's the difference between Assurance and I have every confidence in?

Assurance: A promise that something will happen or be true. I have every confidence in: I completely trust someone or something.

Which is more formal: Assurance and I have every confidence in?

Assurance is the most formal of these.

Which is more common: Assurance and I have every confidence in?

Assurance is the most common in everyday English.

Can you show an example of each?

Assurance: The company offered an assurance that their products were of the highest quality. I have every confidence in: I have every confidence in her ability to lead the team.

Can I use Assurance and I have every confidence in interchangeably?

Not always. Assurance and I have every confidence in 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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