This is the 8276th most frequent Polish word.
prl
PRL: The Polish People's Republic, a socialist state in Poland from 1947 to 1989.
The word 'PRL' here is used as an abbreviation for 'Polska Rzeczpospolita Ludowa', referring to the historical period of the Polish People's Republic (1947–1989).
W czasach PRL wiele rzeczy wyglądało inaczej.
In the times of the Polish People's Republic, many things looked different.
'PRL' is used similarly to refer to the historical context of a certain time period.
Książki z czasów PRL są nieraz bardzo interesujące.
Books from the era of the Polish People's Republic are sometimes very interesting.
'PRL' is again referring to the specific historical regime in Poland.