This is the 8637th most frequent Polish word.
pułkownik
"Pułkownik" means "colonel," a military rank.
The word 'pułkownik' is used to refer to a specific military rank in the organizational structure, indicating the person holding this rank.
Pułkownik dowodził regimentem na poligonie.
The colonel commanded the regiment in the training field.
Here, 'pułkownika' (the genitive form of 'pułkownik') describes an individual holding the rank, referring to their authored recollections.
Przeczytałem wspomnienia pułkownika ze służby wojskowej.
I read the memoirs of the colonel about his military service.
In this instance, 'pułkownikach' (the plural locative form of 'pułkownik') generalizes the rank, emphasizing typical responsibilities or actions associated with colonels in given contexts.