This is the 454th most frequent Polish word.
robert
"Robert" is a Polish male given name.
Proper noun referring to a person's name used in the subject position of the sentence.
Robert chodzi do szkoły codziennie.
Robert goes to school every day.
Possessive case of the noun referring to ownership of an item.
To książka Roberta.
This is Robert's book.
Here, the word is used as a term in a metaphorical or technical context.