scours (Noun) — Diarrhoea in livestock.
scours (Noun) — A place that is scoured (especially by running water).
scours (Verb) — Examine minutely. ex. "The police scoured the country for the fugitive"
scours (Verb) — Clean with hard rubbing. ex. "She scoured his back"
scours (Verb) — Rub hard or scrub. ex. "scour the counter tops"
scours (Verb) — Rinse, clean, or empty with a liquid. ex. "scour the wound with antibiotics"