Dictionary

whiten

verb whit·en \ˈhwī-tən, ˈwī-\

: to make (something) white or whiter or to become white or whiter

whit·enedwhit·en·ing \ˈhwīt-niŋ, ˈwīt-, -ən-iŋ\

Full Definition of WHITEN

transitive verb
:  to make white or whiter <snow whitened the hills>
intransitive verb
:  to become white or whiter
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Examples of WHITEN

  1. His hair whitened as he aged.
  2. Bleach will whiten the linens.
  3. The new toothpaste whitens teeth.

First Known Use of WHITEN

14th century
WHITENED Defined for Kids

whiten

verb whit·en \ˈhwī-tən, ˈwī-\
whit·enedwhit·en·ing

Definition of WHITEN for Kids

:  to make or become white or whiter <Bleach whitens sheets.>

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