> ## Documentation Index > Fetch the complete documentation index at: https://anki.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Core Interface The `core` module in the [translation site](https://i18n.ankiweb.net/projects) uses a translations system called [Fluent](https://projectfluent.org/). It is a recently-developed system that makes it easier for translators to deal with plurals, and makes it easier for developers to provide useful comments to help with translation. Translations in the `core` module are divided up into multiple files, with each file focusing on a particular topic, such as scheduling, deck options, and so on, as can be seen [here](https://i18n.ankiweb.net/en-GB/core/). ## Simple Replacements A simple translation string When the text is a simple string, all you need to do is write the text in your native language and click Save (or press the Enter key). Under the English text, many strings will contain a comment to help you understand where the string is being used, or to give an example of how it appears. "Context" is the short name for this string, and may sometimes give you a hint as to where it is used or what it is trying to represent. ## Variables A translation string with a variable When you see `{$something}` in the English text, it means that that text will be replaced with something else. You can change the position of `{$something}` in your translation, but please don't change the text inside - you should not attempt to translate the text inside the `{...}` part. You can click on the `{$something}` part of the English text to automatically copy it into your translation. ## Plurals Many languages change words depending on number. For example, English uses "1 cat", but "3 cats". Some of the strings to translate will look like this: A translation string with plural forms In the top part, you can see there are two forms for English - the `one` case (second), and the `other` case (seconds). The bottom section shows the translation in Polish, which has four different plural forms. In this case, the `few` case and `many` case have been translated with the same translation. The translation website should automatically show the appropriate number of boxes for your language. Languages like Japanese that do not have separate plural forms will only need to enter in a translation once. ## Advanced Plurals The translation website supports an advanced mode for when you need more flexibility. You can access the advanced mode by clicking on the FTL icon on the bottom left. The previous example then looks like this: Editing translation strings with advanced plurals The first line is the unique identifier for this message - it can also be seen in the "CONTEXT" label near the comments. The rest of the text means the following: * Check the value of amount * If the amount is `one`, show `{$amount} sekunda` * If the amount is `few`, show `{$amount} sekundy` * If the amount is `many`, show `{$amount} sekund` * If the amount is `other`, show `{$amount} sekundy` The definitions of few, many and other depend on [your language](https://unicode.org/cldr/charts/latest/supplemental/language_plural_rules.html). The `*` character before other means that any unknown value should match `other`. Since in this example `few` is the same as `other`, the text could thus be shortened to: ``` time-span-seconds = { $amount -> [one] { $amount } sekunda [many] { $amount } sekund *[other] { $amount } sekundy } ``` As `few` is not listed here, it will be covered in the `other` case. It's generally best to list out all cases however, as otherwise the translation website will shown a warning that you may have forgotten to translate a case. When writing these rules manually, please make sure to add at least one space to the start of each line except the first. While there was little benefit from rewriting the text in this case, this flexibility becomes useful when your language doesn't fit well with the structure of the original English string. For example, when viewing cards in the Browse screen in Anki, Anki shows new cards with a number, such as "New #1", or "New #532". The English doesn't use plurals in this case, but other languages may need to. If you were translating this into Spanish, you'd see the following screen: Editing a translation string to add plurals To add a plural form, click the FTL button, and then change the text to read: ``` due-for-new-card = { $number -> [one] Nueva #{ $number } *[other] Nuevas #{ $number } } ``` Here's another example. In this case the English text is using plurals as well, but only a small part needs to change. When translating to Polish, the "used by" portion needs to change as well. So the default editing screen is not sufficient: Another example of plural forms To fix this, we click on the FTL button to get a blank template: Template view of plural forms And then modify the template as required: Modifying the template view of plural forms ## Other Languages If you're not sure how something should be translated, you can click on the Locales tab on the right. You can see a summary of the translation on that screen, or click on a particular language to see how it has translated all its plural forms. ## Special Characters When a translated string is more than one line long, please keep an eye out for lines that start with `.` or `[`. Strings can start with these characters on the first line, but if a translation stretches over multiple lines, these characters will cause problems. For example, the following is fine: ``` some-translation = This is a translation that occurs over ... two or three lines. ``` But the following will cause problems, because the second line starts with a `[`, and the third starts with a `.`: ``` some-translation = [This is a translation that occurs over ...two or three lines.] ``` When you need to use a `[` or `.` character at the start of a a line in a multi-line string, please escape it by wrapping it in `{"` and `"}` - for example: ``` some-translation = {"["}This is a translation that occurs over {"."}.. two or three lines.] ``` ## Testing Each time a new Anki beta is released, it will include any translation changes that were made since the last time. Please give the betas a try, so you can see how your translations appear in the app. There's a beta testing section on the support site that you can follow for beta updates. When translating, please try to keep the translations about the same length as the original English text. If it is not possible, and you find that text is not appearing properly in a beta (such as two labels overlapping), please report the issue on the support site. When testing the betas, if you notice that some text is not translatable, please report this on the support site so it can be fixed.