# eighty

/ˈeɪti/ (US) · /ˈeɪti/ (UK) · CEFR A1 · Noun

Source: https://englishreference.com/word/eighty
Updated: 2026-05-02

## Definition

the number 80. It comes after seventy-nine and before eighty-one.

For teachers: the cardinal number equivalent to the product of eight and ten.

## Examples

- There are eighty students in the hall.
- My grandmother is eighty years old but she still walks five miles every morning.
- The speed limit on this stretch of the motorway is eighty kilometres per hour, though many drivers unfortunately choose to ignore the restriction.

## Usage notes

- Functions as a determiner when preceding a noun or as a noun when referring to the number itself.

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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.