Definition of salt
1 a
: 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
b
: a substance (such as Glauber's salt) resembling common salt
c
salts plural
(1)
: a mineral or saline mixture (such as Epsom salts) used as an aperient or cathartic
(2)
: smelling salts
d
: any of various compounds that result from replacement of part or all of the acid hydrogen of an acid by a metal or a group acting like a metal : an ionic crystalline compound
2
: a container for salt at table
—often used in the phrases above the salt and below the salt alluding to the former custom of seating persons of higher rank above and those of lower rank below a saltcellar placed in the middle of a long table
3 a
: an ingredient that gives savor, piquancy, or zest : flavor
- a people … full of life, vigor, and the salt of personality
- —Clifton Fadiman
b
: sharpness of wit : pungency
c
: common sense
d
: reserve, skepticism
—usually used in the phrases with a grain of salt and with a pinch of salt
e
: a dependable steadfast person or group of people
—usually used in the phrase salt of the earth
4
: sailor
- a tale worthy of an old salt
5
: keep 1
—usually used in the phrase worth one's salt
