# quan

/ˈkwɔn/ (US) · CEFR C2 · Noun

Source: https://englishreference.com/word/quan
Updated: 2026-05-18

## Definition

a very large number, often used in math or science to describe something that is infinite or extremely big. It is a short way of saying 'quantum' or 'quanta'.

For teachers: a large or infinite quantity, often used in mathematical or physical contexts to describe a vast amount of something. Derived from the Latin 'quantus', it is a rare term used primarily in technical or poetic registers.

## Examples

- The scientist used the term quan to describe the vast amount of energy.
- In the poem, the poet uses the word quan to express the boundless nature of the universe.
- The philosopher argued that the human mind is capable of holding a quan of knowledge that far exceeds the physical limits of the brain's storage capacity.

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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.