This is the 12146th most frequent Polish word.
malarzy
"Malarzy" means "painters" (plural form) in English.
Here, 'malarzy' is the accusative plural form of 'malarz', meaning 'painters', used to indicate a direct object being observed.
Widzę grupę malarzy pracujących nad wielkim muralem.
I see a group of painters working on a large mural.
In this sentence, 'malarzy' is again in its accusative plural form, referring to specific individuals that were met.
Spotkaliśmy tych malarzy podczas festiwalu sztuki w mieście.
We met those painters during the city art festival.
Here, 'malarzy' is the genitive plural form of 'malarz', used to indicate possession in a negative sentence.