This is the 10763rd most frequent Polish word.
dwuczęściowego
"Of two parts" or "two-piece."
Here, 'dwuczęściowy' describes the type or nature of the swimsuit, specifying it consists of two parts.
Marysia wyciągnęła ze szafy swój nowy kostium dwuczęściowy.
Marysia took her new two-piece swimsuit out of the closet.
In this sentence, 'dwuczęściowego' qualifies the kitchen furniture set, indicating it is composed of two separate parts.
Podczas remontu rozważaliśmy zakup dwuczęściowego zestawu mebli kuchennych.
During the renovation, we considered purchasing a two-piece set of kitchen furniture.
Here, 'dwuczęściowy' is used to describe the film as consisting of two parts, focusing on the narrative structure.