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zero [zeroed, zeroing, zeros]▼(to cause or set some value or amount to be zero)
verb
[UK: ˈzɪə.rəʊ] [US: ˈzɪro.ʊ]

vanish [vanished, vanishing, vanishes]▼(mathematics: to become equal to zero)
verb
[UK: ˈvæ.nɪʃ] [US: ˈvæ.nɪʃ]