This is the 8269th most frequent Polish word.
pkp
"PKP" stands for "Polskie Koleje Państwowe" (Polish State Railways), the national railway operator in Poland.
Here, 'PKP' refers to 'Polskie Koleje Państwowe', the Polish State Railways.
Nie mamy jeszcze biletu na pociąg PKP.
We don't yet have a ticket for the PKP train.
In this context, 'PKP' pertains to the company responsible for the planning of railway infrastructure.
PKP planuje poważną modernizację torowisk.
PKP is planning a major modernization of railway tracks.
Here, 'PKP' indicates the system providing scheduling information related to the railway service.