# millionth

/ˈmɪɫjənθ/ (US) · /mˈɪliənθ/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/millionth
Updated: 2026-05-25

## Definition

the position of number 1,000,000 in a series. It is the ordinal form of the number one million.

For teachers: the ordinal number corresponding to the cardinal number one million. Often used in technical contexts to describe a specific position in a sequence or a fraction of a million.

## Examples

- He reached the millionth visitor to his website today.
- The scientist measured the concentration of the substance down to the millionth of a gram to ensure accuracy.
- In a vast database containing billions of records, the millionth entry was flagged for an anomaly that required manual verification by the engineering team.

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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.