How to select word spell checking language

1. From the Review tab, in the Proofing section, click SET LANGUAGE
   The Language dialog box appears.
    

2. From the scroll list, select the desired language.
    

3. Click DEFAULT...
   A confirmation dialog box appears.

4. Click YES
   The default language is set.

5. Click OK

   

6. Pls go to Word Options > Proofing > Custom Dictionaries > Select All language as attachment.

   

7. Restart MS Word.