This is the 5836th most frequent Polish word.
zaproszenie
Invitation.
In this sentence, 'zaproszenie' refers to a formal invitation received by the subject.
Otrzymałem zaproszenie na przyjęcie urodzinowe.
I received an invitation to a birthday party.
Here, 'zaproszenie' is used metaphorically to describe a proposition or an opportunity for discussion.
Zaproszenie do dyskusji na ten temat było bardzo mile widziane.
The invitation to discuss this topic was very welcome.
In this context, 'zaproszenie' refers to the tangible item or concept designed to invite someone.