This is the 3151st most frequent Catalan word.
preliminar
Preliminary; introductory or preparatory.
The word 'preliminar' functions as an adjective describing the noun 'informe' to indicate that it is introductory or initial.
Aquest és només un informe preliminar.
This is only a preliminary report.
Here, 'preliminar' is used as an adjective modifying 'reunió', denoting that the meeting was preparatory.
Van tenir una reunió preliminar abans de la conferència.
They had a preliminary meeting before the conference.
In this case, 'preliminar' describes 'idea', emphasizing it as an initial or tentative concept.