# thirteen

/ˈθɝˈtin/ (US) · /θɜːtˈiːn/ (UK) · CEFR A1 · Noun

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

## Definition

the number that comes after twelve and before fourteen.

For teachers: the cardinal number equivalent to the sum of twelve and one.

## Examples

- There are thirteen players on the team today.
- The baker added an extra roll to the bag, giving the customer thirteen instead of twelve.
- Superstitious beliefs regarding the number thirteen often lead to the omission of a thirteenth floor in high-rise buildings, skipping directly from twelve to fourteen.

## Usage notes

- Functions as both a noun and a determiner depending on whether it stands alone or modifies a noun.

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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.