This is the 13422nd most frequent Polish word.
pamiątkowy
Commemorative.
The word "pamiątkowy" is used to describe a mug which serves as a souvenir to remember the trip by.
Kupiłem pamiątkowy kubek na wycieczce.
I bought a souvenir mug on the trip.
The word "pamiątkowy" here describes a medal created to commemorate and serve as a reminder of wartime events.
W muzeum można zobaczyć pamiątkowy medal z czasów wojny.
In the museum, you can see a commemorative medal from wartime.
"Pamiątkowy" is used to describe photos intended to serve as a keepsake for the wedding guests.