This is the 41st most frequent Czech word.
lidí
The Czech word "lidí" means "of people" or "people" (genitive plural form).
Here, 'lidí' is the plural genitive form used in the context of quantity (many people).
V parku bylo hodně lidí.
There were many people in the park.
In this sentence, 'lidí' is the plural genitive case showing possession (of those people).
Nevím názor těch lidí.
I don't know the opinion of those people.
'Lidí' is used in the plural genitive as part of a prepositional phrase indicating relationship or grouping (group of people).