# Message

interface

The internationalization message interface. A message that implements this interface can be passed to the `t()` function to be translated to the target UI language.

[See source](https://github.com/ckeditor/ckeditor5/blob/master/packages/ckeditor5-utils/src/translation-service.ts#L256)

<a id="properties">

## Properties

<a id="member-id">

### `id?: string` _(readonly)_

The message ID. If passed, the message ID is taken from this property instead of the `message.string`. This property is useful when various messages share the same message string, for example, the `editor` string in `in the editor` and `my editor` sentences.

[See source](https://github.com/ckeditor/ckeditor5/blob/master/packages/ckeditor5-utils/src/translation-service.ts#L269)

<a id="member-plural">

### `plural?: string` _(readonly)_

The plural form of the message. This property should be skipped when a message is not supposed to support plural forms. Otherwise it should always be set to a string with the English plural form of the message.

[See source](https://github.com/ckeditor/ckeditor5/blob/master/packages/ckeditor5-utils/src/translation-service.ts#L275)

<a id="member-string">

### `string: string` _(readonly)_

The message string to translate. Acts as a default translation if the translation for a given language is not defined. When the message is supposed to support plural forms, the string should be the English singular form of the message.

[See source](https://github.com/ckeditor/ckeditor5/blob/master/packages/ckeditor5-utils/src/translation-service.ts#L262)

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Full index of the CKEditor 5 API reference: [llms.txt](llms.txt)