This is the 10552nd most frequent Polish word.
dewelopera
"Dewelopera" means "developer" (referring to a real estate developer).
In this sentence, 'dewelopera' is in the singular, accusative case, referring to a person working as a real estate developer.
Spotkałem dewelopera na konferencji branżowej.
I met the developer at an industry conference.
Here, 'dewelopera' is in the genitive case, describing possession, indicating that the project belongs to the developer.
Projekt dewelopera był bardzo nowoczesny i funkcjonalny.
The developer's project was very modern and functional.
In this usage, 'dewelopera' is also in the genitive case, included in a phrase describing the field of work related to the developer.