This is the 11385th most frequent Catalan word.
ucraïnès
Ucraïnès: Ukrainian (language or relating to Ukraine).
The word 'ucraïnès' is used as a noun in this context, referring to the Ukrainian language being studied.
L'estudiant està aprenent ucraïnès a l'escola.
The student is learning Ukrainian at school.
Here, 'ucraïnès' functions as a noun to specify the language in which the book is written, indicating its usage in the context of texts.
Aquest llibre està escrit en ucraïnès.
This book is written in Ukrainian.
In this sentence, 'ucraïnès' is an adjective modifying the noun 'professor', describing the nationality of the teacher.