What does "doi" mean?

Initialism of date of incident.

Doi

Common synonyms include: department of the interior, digital identifier, interior, interior department, persistent identifier, unique identifier.

/diː əʊ aɪ/ name, noun

name, noun ·Rare ·Advanced level

Noun

1
Initialism of date of incident. abbreviation, alt-of, initialism
2
the United States federal department charged with conservation and the development of natural resources; created in 1849 wordnet
3
Initialism of digital object identifier. abbreviation, alt-of, initialism

Proper Noun

1
Initialism of Department of the Interior. US, abbreviation, alt-of, initialism

"The man that I visited was Mr. Doi."