You can customize many of the field labels to match the language that you use in your own process. You will also want to change the generic user-defined field labels to be more descriptive. To make these changes, use the the Data Dictionary found in the Admin/Config menu. 
Note that there are many tabs to look through to find the fields that you want.
Enter the new field label in the Override box. Tooltips can also be added which allow for a longer description of the field contents to be shown when you “mouse over” the field.