This is the 6751st most frequent Polish word.
emmanuelem
"Emmanuelem" is the instrumental case of the proper noun "Emmanuel," which is a name meaning "God is with us."
In this sentence, 'Emmanuelem' is a proper noun in the instrumental case, indicating the person with whom the action ('meeting') is carried out.
Spotkałem się z Emmanuelem w restauracji.
I met with Emmanuel at the restaurant.
Here, 'Emmanuele' refers to Emmanuel in the locative case, marking the object being talked about.
Rozmawiałem o Emmanuele z moimi przyjaciółmi.
I talked about Emmanuel with my friends.
In this case, 'Emmanuela' is utilized in the genitive case, showing possession or authorship attributes.