So, what is the difference between the Language codes and the Country ones?

Two-digit language codes should not be confused with two-digit country codes.

In Ukraine, the most confusing code is the UK code: when it comes to languages, it means Ukrainian, when it comes to countries, it means United Kingdom (but not Ukraine at all).

• The two-digit code for the Ukrainian language is UK. It is most often present in the URLs of Ukrainian versions of sites. For example, the address of the Ukrainian Wikipedia is uk.wikipedia.org.
• The two-digit code for Ukraine is UA. This code is present, for example, on car signs.

So, the full code for the Ukrainian language is UK-UA (in the image).

• The code for English without dialects is EN.
• The code for the United States is US, the code for Great Britain is GB. Therefore, the code for the American version of English is EN-US, and the code for the British version is EN-GB.

Language codes are defined by the ISO 639 standard, and country codes are defined by the ISO 3166 standard. Codes are not only two-digit ones.

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