The Translation in the UCI is for other languages than english in some cases either not correct or not well translated.
Especially when you look at the "+ New" button in the subgrids.
In English it says "Add New Contact" in German and other languages the Translation is "Neue Kontakt hinzufügen" Kontakt is singular and weird. Better would be "Neuen Kontakt hinzufügen".
In Italian and French it says something "Add new Entity Contacts" the Users are asking what is meant by "Entity".