- (obsolete) A call for help, or of distress, alarm etc.
- A device consisting of a heavy framework having several disks or teeth in a row, which is dragged across ploughed land to smooth or break up the soil, to remove weeds or cover seeds; a harrow plow.
- (military) An obstacle formed by turning an ordinary harrow upside down, the frame being buried.
- To break or tear, as with a harrow; to wound; to lacerate; to torment or distress; to vex.
- To traumatize or disturb; to frighten or torment.
"The headless horseman harrowed Ichabod Crane as he tried to reach the bridge."
- To drag a harrow over; to break up with a harrow.