decease(departure, especially departure from this life; death) noun [UK: dɪ.ˈsiːs] [US: də.ˈsiːs]
fallecimientonoun {m}
passing(death, dying; the end) noun [UK: ˈpɑːs.ɪŋ] [US: ˈpæs.ɪŋ]Grandmother's passing away came as a great blow to the entire family. = El fallecimiento de la abuela fue un mazazo para toda la familia.