Life and faith (bóg, kościół)

Faith words

god (Bóg; Voc. Boże!)

bóg — god (capitalized as a name: Bóg; note the Vocative you already know from exclamations: Boże!). church

kościół — church — both the building and the institution: Idziemy do kościoła.

Life's end

death

śmierć — death (feminine: ta śmierć). to kill (perfective)

zabić — to kill (perfective): Kto zabił króla? — the word every history page and crime story runs on.