So, how to change the label? Here we go:
- Navigate to Setup - Translation Workbench - Override
- Select the Package, Language, Setup Component = Custom Field, Object and Aspect = Field Label
- It will show all custom fields for that object
- Double click in column 'Field Label Overwrite'
- Press TAB to move to next editable field or SHIFT-TAB to go to the previous editable field.
- Click Save button and done.
View in object page layout, before:
With the same approach, we also can do for component:
- Apex Sharing Reason
- Button and Link Label
- Custom Field
- Custom Report Type
- Lookup Filter
- Record Type
- Validation Error Message
- Web Tab
- Workflow Task
Note: you do NOT need to enable Translation Settings to do this change.