We can create a NetSuite Translation collection record by using the navigation:
Customization > Translation > Manage Translations
Now you can see the ‘Create New’ button under the ‘Collections’ subtab. On clicking the button, you can create a ‘Translation Collection’ with a suitable ‘Name’, ‘ID’, ‘Description’, and ‘Default Language’.
Use an ID value representing the context of the related project or functionality if you plan to use this in an SDF.
The default language will be used to store the text and all the other language values can be added as translation.