rub salt in/into the wound

: to move along the surface of a body with pressure : grate

: to fret or chafe with or as if with friction

: to cause discontent, irritation, or anger

: an unevenness of surface (as of the ground in lawn bowling)

: obstruction, difficulty

: something grating to the feelings (such as a gibe or harsh criticism)

: a crystalline compound NaCl that consists of sodium chloride, is abundant in nature, and is used especially to season or preserve food or in industry —called also common salt

: a substance (such as Glauber's salt) resembling common salt

: a mineral or saline mixture (such as Epsom salts) used as an aperient or cathartic

: to treat, provide, or season with common salt

: to preserve (food) with salt or in brine

: to supply (an animal) with salt

: saline, salty

: being or inducing the one of the four basic taste sensations that is suggestive of seawater — compare bitter, sour, sweet

: cured or seasoned with salt : salted

: lustful, lascivious

: an injury to the body (as from violence, accident, or surgery) that typically involves laceration or breaking of a membrane (such as the skin) and usually damage to underlying tissues

: a cut or breach in a plant usually due to an external agent

: a mental or emotional hurt or blow

: to cause a wound to or in

: to inflict a wound

: past tense and past participle of wind