Whiten /(?)/

imp. & p. p. Whitened; p. pr. & vb. n. Whitening

1. To grow white; to turn or become white or whiter; as, the hair whitens with age; the sea whitens with foam; the trees in spring whiten with blossoms.

1. To make white; to bleach; to blanch; to whitewash; as, to whiten a wall; to whiten cloth.

   The broad stream of the Foyle then whitened by vast flocks of wild swans.