scour
noun.
a place that is scoured (especially by running water)
verb.
examine minutely
The police scoured the country for the fugitive
verb.
clean with hard rubbing
She scrubbed his back
Synonym: scrub
verb.
rub hard or scrub
scour the counter tops
Synonym: abrade
verb.
rinse, clean, or empty with a liquid
flush the wound with antibiotics|purge the old gas tank
Synonym: flush, purge