This is the 7544th most frequent Polish word.
kubica
"Kubica" is not a standard Polish word; it is a surname, most notably associated with Polish Formula 1 driver Robert Kubica.
Here, 'kubica' refers to a 'mug' or 'cup,' typically used to hold liquids, in general Polish usage.
Nasz kubica jest pełny wody.
Our mug is full of water.
In this sentence, 'kubica' is used as part of a name, referring to Robert Kubica, a Polish race car driver well-known internationally.
Kubica samochodowa Roberta była na wyścigu.
Robert's racing car was at the race.
Again, 'kubica' refers to a 'cup' or 'mug,' emphasizing general hygiene practices related to such items.