This is the 806th most frequent Czech word.
markéta
The Czech word "Markéta" is a feminine given name, equivalent to "Margaret" in English.
Here, 'Markéta' is being used as a personal name referring to an individual, specifically my friend.
Markéta je moje kamarádka.
Markéta is my friend.
In this sentence, 'Markéta' is again a proper noun, referencing a person engaging in an activity - here, shopping.
Markéta šla nakupovat.
Markéta went shopping.
Here the word 'markéta' refers to a place, specifically a market. This showcases a different usage outside of its common use as a personal name.