
Adding a new language doesn’t remove the prior language, it becomes an additional option. In fact, you’ll have the ability to easily switch between the languages and set one or the other as a primary language at any time, and change between them as needed. Something else to keep in mind is that when you switch the language on a Mac, many things change with it, from menu items, to date format, measurements, and assorted other items through the system – these can all be adjusted individually if desired, but for our purposes in this tutorial we’re going to focus on adding and changing the language in Mac OS X.
How to Add & Change to a New Language to Mac OS X
You can add as many languages as you want, but in this walkthrough we’ll focus on just adding a second new language and changing to that as the new language default.- From the Apple menu visit “System Preferences”
- Choose “Language & Region” preference panel
- Under the ‘Preferred languages’ section, click on the plus [+] button
- Navigate to and select the language you want to add, then click on the Add button
- Decide whether you want to use the newly added language as your primary language, or to continue using the original language as the primary language





By the way, if you’re looking to add multiple new languages that you can switch from, use the typical multiple-selection tools in Mac OS X to choose a few at a time. For example, holding down the Command key and clicking selections allows you to pick two noncontiguous language selections to add:

You may also find it useful to add and change languages on iOS too if you’re an iPhone or iPad user.
Source Url and Image: How to Add & Switch Languages in Mac OS X