---
title: modificationDate
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nsspeechsynthesizer/dictionarykey/modificationdate
---

# modificationDate

A string representation of the dictionary’s last modification date in the international format (YYYY-MM-DD HH:MM:SS ±HHMM). If the same word appears across multiple dictionaries, the one from the dictionary with the most recent date will be used.

## Declaration

```swift
static let modificationDate: NSSpeechSynthesizer.DictionaryKey
```

## See Also

### Type Properties

- [abbreviations](appkit/nsspeechsynthesizer/dictionarykey/abbreviations.md)
- [entryPhonemes](appkit/nsspeechsynthesizer/dictionarykey/entryphonemes.md)
- [entrySpelling](appkit/nsspeechsynthesizer/dictionarykey/entryspelling.md)
- [localeIdentifier](appkit/nsspeechsynthesizer/dictionarykey/localeidentifier.md)
- [pronunciations](appkit/nsspeechsynthesizer/dictionarykey/pronunciations.md)