# definitely

/ˈdɛfənətɫi/ (US) · /dˈɛfɪnətli/ (UK)

Source: https://englishreference.com/word/definitely
Updated: 2026-06-19

## Senses

### 1. certainly

adverb · CEFR A2

without any doubt; 100% sure.

For teachers: used to emphasise that something is certainly true or will certainly happen.

- I will definitely be at your party on Saturday night.
- The recent data suggests that the climate is definitely changing at a faster rate than previously predicted by the committee.

### 3. decisively

adverb · CEFR C1 · Formal

in a way that is clear and final.

For teachers: in a manner that is clearly defined or decided; leaving no room for confusion.

- The matter was definitely settled after the final meeting.
- The CEO spoke definitely about the company's future, leaving the shareholders with no doubt regarding the upcoming merger.

Usage: Often used to describe how a problem is solved or how a person speaks.

## Examples

- I will definitely be at the party tonight.
- The team definitely played better in the second half, though they still lost the match.
- While the evidence is circumstantial, the results definitely suggest a correlation between the two variables that warrants further investigation.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.