@Acer
Not quite.

Internationalisation (or i18n) is the process of making software translatable. Plus language specific things like dates, currencies and writing direction.

Localisation (or l10n) is providing the translation but also taking care of locale specific nuances.
Think Austrian vs. Germany vs. Switzerland German.

Or UK vs. US vs. AU English.
Or even North vs. South States.

You can see that at the locale part (e.g. en_UK).