This is the 7089th most frequent Polish word.
huberta
"Huberta" is the genitive or accusative form of the Polish name "Hubert," often referring to Saint Hubert or used in grammatical contexts.
Here, 'Huberta' is the accusative case for the masculine proper noun 'Hubert', used as the object of the verb 'zaprosiłem' (invited).
Huberta zaprosiłem na przyjęcie.
I invited Hubert to the party.
In this sentence, 'Huberta' is again the accusative case of 'Hubert', indicating the person not seen.
Nie widziałem Huberta od dawna.
I haven't seen Hubert for a long time.
Here, 'Huberta' is used in the accusative case as the direct object of the verb 'poznałem' (I met).