scour

> scour (1)
(verb)
brighten, buff, burnish, clean, cleanse, polish, purge, scrape, scrub, rub, wash, whiten.
rake.
efface, obliterate, overrun.

> scour (2)
(verb)
career, course, range, scamper, scud, scuttle.
comb, hunt, rake, ransack, rifle, rummage, search.