Lashon hara (or loshon horo, or loshon hora) (Hebrew: לשון הרע; "evil tongue") is the halakhic term for speech about a person or persons that is negative or harmful to them, even though it is true.[4] It is speech that damages the person(s) who is talked about either emotionally or financially, or lowers them in the estimation of others.[5]
Lashon hara differs from the more severe prohibition of hotzaat shem ra, "making a bad name," in that hotzaat shem ra consists of untrue statements.
Lashon hara is considered to be a very serious sin in the Jewish tradition. The communicator of lashon hara (which is included in rechilut) violates the Torah prohibition of lo telech rachil b'ameicha,[4][6][7] translating to "thou shalt not go up and down as a talebearer among thy people" (Leviticus 19:16 KJV).