To thrust or plunge into a fluid; immerse; dip; also, to drench or flood with a fluid.To fall or be plunged suddenly into a fluid.To search for deposits of ore, for lodes, or for water, by the aid of the dousing- or divining-rod (which see).To strike.Nautical, to strike or lower in haste; slacken suddenly: as, douse the topsail.n. A blow; a stroke.To put out; extinguish.