побелить означает в английский

blanch [blanched, blanching, blanches]▼(to make white)
verb
[UK: blɑːntʃ] [US: ˈblæntʃ]

whitewash [whitewashed, whitewashing, whitewashes]▼(to paint over with a lime and water mixture so as to brighten up a wall or fence)
verb
[UK: ˈwaɪ.twɒʃ] [US: ˈwaɪ.ˌtwɑːʃ]

whiten [whitened, whitening, whitens]▼(to make white or whiter; to bleach or blanch)
verb
[UK: ˈwaɪt.n̩] [US: ˈwaɪt.n̩]