Definition of whiten in US English:

whiten

verb

  • Make or become white.

    with object ‘snow whitened the mountain tops’
    no object ‘she gripped the handle until her knuckles whitened’
    • ‘Mike gripped the arms of his seat until his knuckles whitened.’
    • ‘She pressed her lips together until they whitened and turned numb.’
    • ‘If you have been using bleach to whiten clothes and they are now graying, switch to peroxide.’
    • ‘In a food processor or a medium mixing-bowl, blend the sugar with the eggs until the mixture whitens slightly.’
    • ‘I clench the steering wheel, my knuckles whitening.’
    • ‘The bleach will whiten fungi or algae but does not change the color of dirt.’
    • ‘Following the example of numerous celebrities, it is fast becoming the norm to have your teeth whitened professionally.’
    • ‘Some of the other buildings were whitened with snow.’
    • ‘This prospect is further whitening the knuckles of Vodafone shareholders.’
    • ‘In the early 1990s, 46 of the 145 pulp mills in Canada used various chlorine bleaching processes to whiten paper.’
    • ‘The image occurs in the lower half of the composition; the upper half has been whitened with bleach and salt, framing the partially protected torso on view.’
    • ‘Isaac stood there, snow whitening his black hair.’
    • ‘Jason's knuckles whitened as he tightened his hold on his gun.’
    • ‘It had my audience on the edge of its seats, lips parted, knuckles whitened.’
    • ‘The old wizard's knuckles whitened on his staff.’
    • ‘I gripped my backpack, knuckles whitening as the trepidation in my gut hardened into anger.’
    • ‘We felt the wind pick up, saw waves whiten, but until the water went black and the bottle was empty we went on talking, nobody saying a word.’
    • ‘He gripped his boomerang tightly, whitening his knuckles.’
    • ‘Dental Miracle is the single remedy I would take to a desert island, as it not only works to promote healthier gums, but also freshens breath and whitens teeth.’
    • ‘For some reason, even after all these years, they have never faded, or even whitened.’
    become white, make white, become pale, make pale, bleach, blanch, lighten, fade, wash out, be washed out, etiolate
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Pronunciation

whiten

/ˈ(h)waɪtn//ˈ(h)wītn/