Polish · Adjectives
fast
Moving or happening quickly.
Pociąg ekspresowy jest bardzo szybki.
The express train is very fast.
'Szybki' comes from the Proto-Slavic *sъbъkъ, which conveys the meaning of 'fast'. It has retained this meaning consistently within Polish.
'Szybki' is used informally and formally, in both spoken and written language, across all regions of Poland without significant variation.