accumularsi significa in inglese

accumulate [accumulated, accumulating, accumulates]▼(to grow in number)
verb
[UK: ə.ˈkjuː.mjə.leɪt] [US: ə.ˈkjuː.mjə.ˌlet]

pitch [pitched, pitching, pitches]▼(of snow, to settle and build up, without melting)
verb
[UK: pɪtʃ] [US: ˈpɪtʃ]