(transitive) To soil or stain; to dirty. / (transitive) To corrupt or damage. / (intransitive, ergative) To become soiled or tarnished.

(rare, obsolete) A blemish.

(inorganic chemistry) The weak acid, H₂SO₃, present in a solution of sulfur dioxide in water; it is a reducing agent and mild bleach.

(American spelling, inorganic chemistry) Any salt of sulfurous acid.

(British spelling, chemistry) Alternative spelling of sulfate

(British spelling, chemistry) Alternative spelling of sulfate

(organic chemistry) Any ester of sulfuric acid. / (inorganic chemistry) Any salt of sulfuric acid.

(American spelling, transitive, chemistry) To treat something with sulfuric acid, a sulfate, or with sulfur dioxide. / (of a lead-acid battery) To accumulate a deposit of lead sulfate.

(often derogatory) silent and withdrawn after being upset

A low two-wheeled cart, used in harness racing. / Any carriage seating only the driver.