# believer

/bəˈɫivɝ/ (US) · /bɪlˈiːvɐ/ (UK) · CEFR B1 · Noun

Source: https://englishreference.com/word/believer
Updated: 2026-05-03

## Definition

someone who is sure that something is true or good. You can use this for religious faith or just for having strong confidence in an idea.

For teachers: a person who maintains a firm conviction in the truth or efficacy of something. Often followed by the preposition 'in' to specify the object of faith or confidence.

## Examples

- She is a firm believer in the power of daily exercise.
- As a true believer in lifelong learning, he enrolled in a new university course at the age of eighty.
- While some critics remained skeptical of the new economic policy, the prime minister found a staunch believer in the head of the central bank.

## Pitfalls

- Not "a believer of justice" but "a believer in justice" — The noun believer almost always takes the preposition 'in' rather than 'of' when describing the object of belief.

## Usage notes

- Commonly pairs with the preposition 'in' to indicate the subject of the belief.

---

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.