diff --git a/lang/pl.json b/lang/pl.json
index 330b44d..518b059 100644
--- a/lang/pl.json
+++ b/lang/pl.json
@@ -1,94 +1,94 @@
 {
     "Objects with diet information": "",
-    "category:administrative": "",
-    "category:agriculture": "",
+    "category:administrative": "Administracyjne",
+    "category:agriculture": "Rolnictwo",
     "category:alternative_amenities": "",
-    "category:alternative_routes": "",
-    "category:buildings": "",
-    "category:buildings-entrances": "",
+    "category:alternative_routes": "Trasy alternatywne",
+    "category:buildings": "Budynki",
+    "category:buildings-entrances": "Wejścia do budynków",
     "category:buildings-figure-ground": "",
-    "category:buildings-height": "",
+    "category:buildings-height": "Wysokość budynków",
     "category:buildings-start_date": "",
-    "category:buildings-type": "",
+    "category:buildings-type": "Rodzaj budynku",
     "category:car_amenities": "",
     "category:car_furniture": "Elementy drogowe",
     "category:car_maxspeed": "",
-    "category:car_routes": "",
-    "category:children": "",
-    "category:coal": "",
-    "category:communication": "",
+    "category:car_routes": "Trasy samochodowe",
+    "category:children": "Dzieci",
+    "category:coal": "Węgiel",
+    "category:communication": "Komunikacja",
     "category:construction": "",
-    "category:craft": "",
+    "category:craft": "Rzemiosło",
     "category:culture": "Kultura",
     "category:culture_religion": "Kultura",
     "category:cycle_amenities": "",
-    "category:cycle_routes": "",
+    "category:cycle_routes": "Trasy rowerowe",
     "category:education": "Edukacyjne",
-    "category:electric_power": "",
+    "category:electric_power": "Energia elektryczna",
     "category:emergency": "",
-    "category:energy": "",
-    "category:financial": "Finasowe",
+    "category:energy": "Energia",
+    "category:financial": "Finansowe",
     "category:gastro": "Gastronomia",
     "category:gastro-smoking": "",
     "category:health": "Zdrowie",
-    "category:hiking_routes": "",
-    "category:historic": "Miejsca Historyczne",
+    "category:hiking_routes": "Trasy wspinaczkowe",
+    "category:historic": "Miejsca historyczne",
     "category:index": "",
-    "category:infrastructure": "",
-    "category:internet": "",
-    "category:law": "",
-    "category:leisure": "",
+    "category:infrastructure": "Infrastruktura",
+    "category:internet": "Internet",
+    "category:law": "Prawo",
+    "category:leisure": "Wypoczynek",
     "category:leisure_sport_shopping": "Wypoczynek, Sport i Zakupy",
-    "category:memorial": "",
-    "category:military": "",
-    "category:mtb-routes": "",
-    "category:natural": "",
-    "category:office": "",
-    "category:oil_gas": "",
-    "category:organisations": "",
-    "category:other": "",
+    "category:memorial": "Miejsca pamięci",
+    "category:military": "Wojskowe",
+    "category:mtb-routes": "Trasy MTB",
+    "category:natural": "Natura",
+    "category:office": "Biura",
+    "category:oil_gas": "Stacje benzynowe i gazowe",
+    "category:organisations": "Organizacje",
+    "category:other": "Inne",
     "category:outdoor": "",
-    "category:phone": "",
+    "category:phone": "Telefon",
     "category:places": "Miejsca",
     "category:places_geo": "Miejsca",
-    "category:playgrounds": "",
-    "category:post": "",
+    "category:playgrounds": "Place zabaw",
+    "category:post": "Poczta",
     "category:power_routes": "",
-    "category:pt": "",
-    "category:pt:routes": "",
+    "category:pt": "Transport publiczny",
+    "category:pt:routes": "Trasy transportu publicznego",
     "category:pt:stops": "Przystanki i Stacje",
     "category:pt_amenities": "",
-    "category:public": "",
-    "category:railway": "",
+    "category:public": "Publiczne",
+    "category:railway": "Kolej",
     "category:railway-electrification": "",
     "category:railway-gauge": "",
-    "category:railway-infrastructure": "",
+    "category:railway-infrastructure": "Infrastruktura kolejowa",
     "category:railway-maxspeed": "",
-    "category:railway-routes": "",
-    "category:religion": "",
-    "category:renewables": "",
-    "category:residential": "",
-    "category:resources": "",
+    "category:railway-routes": "Trasy kolejowe",
+    "category:religion": "Religia",
+    "category:renewables": "Odnawialne",
+    "category:residential": "Mieszkaniowe",
+    "category:resources": "Źródła",
     "category:services": "Usługi",
     "category:shop": "Zakupy",
-    "category:special": "",
-    "category:sport": "",
-    "category:swimming_bathing": "",
-    "category:tourism_attractions": "Turystyka",
-    "category:tourism_services": "Turystyka",
+    "category:special": "Specjalne",
+    "category:sport": "Sport",
+    "category:swimming_bathing": "Pływanie i opalanie",
+    "category:tourism_attractions": "Atrakcje turystyczne",
+    "category:tourism_services": "Usługi turystyczne",
     "category:transport": "Transport",
-    "category:transport_alternative": "",
-    "category:transport_car": "Transport Indywidualny",
-    "category:transport_cycle": "",
-    "category:transport_pt": "Transport Publiczny",
-    "category:transport_walk": "",
+    "category:transport_alternative": "Transport alternatywny",
+    "category:transport_car": "Transport indywidualny",
+    "category:transport_cycle": "Transport rowerowy",
+    "category:transport_pt": "Transport publiczny",
+    "category:transport_walk": "Transport pieszy",
     "category:walk_amenities": "",
-    "category:waste": "",
-    "category:water": "",
-    "category:wikipedia": "",
-    "category:works": "",
-    "category:xmas": "",
-    "date format not understood": "",
-    "outdated feature": "",
+    "category:waste": "Śmieci",
+    "category:water": "Woda",
+    "category:wikipedia": "Wikipedia",
+    "category:works": "Prace",
+    "category:xmas": "Święta",
+    "date format not understood": "Niezrozumiały format dat",
+    "outdated feature": "Przestarzałe cechy",
     "xmas:outdated-warning": ""
 }