Ludzi
Ludzi is the genitive plural form of the Polish nouns czlowiek (person) and lud (people, populace). It functions as a grammatical form rather than as a standalone word, and it appears in contexts where the genitive case is required. When referring to people in general, or to a group, writers and speakers often use this form after numerals, quantifiers, or prepositions that govern the genitive.
In practical use, ludni appears in phrases such as duzo ludzi (many people), kilka ludzi (a few
Semantically, czlowiek refers to an individual human being, while lud can denote people collectively, a population,
Etymologically, the forms derive from traditional Slavic roots for referring to people, with ljudi,lud and czlowiek