This is the 16671st most frequent Polish word.
współautorem
Co-author.
The word 'współautorem' is used to describe Jan's role as a co-creator or contributor to the content of the book.
Jan został współautorem książki o historii.
Jan became a co-author of the book on history.
Here, 'współautorem' is used to denote a person who shared the responsibility of designing the project, emphasizing a collaborative effort.
Współautorem projektu był znany architekt.
The co-author of the project was a renowned architect.
In this sentence, 'współautorem' signifies a participant who helped create the presentation, indicating participation in group work.