Idle talk or rumor about others.
The International Standard Bible Encyclopedia, Revised
Slander; Slanderer
Slander; Slanderer [Heb. rāg̱al—‘use the feet,’ ‘go about for spying or gossip’] (Ps. 15:3; piel, 2 S. 19:27); AV also BACKBITE; NEB HAVE MALICE, STORIES; [rāḵîl] (Lev. 19:16; Jer. 6:28; 9:4 [MT 3]; Ezk. 22:9); AV also TALEBEARER, TALES; NEB also MISCHIEFMAKER, INFORMER; [lāšan—‘use the tongue
Makebates mākʹbāts (AV mg 2 Tim. 3:3; Tit. 2:3). Archaic term for one who stirs up strife, translating Gk. diáboloi (cf. AV “false accusers”; RSV “slanderers”). See Slander.
Tyndale Bible Dictionary
SLANDER The utterance of false charges or accusations that defame another person’s reputation; when directed toward God, such accusations are considered blasphemy. See Blasphemy.
The Wycliffe Bible Encyclopedia
SLANDER. A malicious statement designed to injure the person of whom it is said. The Bible frequently warns against slander (Ex 20:16; Lev 19:16; Ezk 22:9; Eph 4:31; Col 3:8; Jas 4:11).
The New Bible Dictionary, Third Edition
Talebearing, Slander
TALEBEARING, SLANDER. These words translate, in the OT, expressions implying secrecy (Pr. 18:8, ‘whisperer’), evil report (Nu. 14:36), the giving out (Ps. 50:20) or carrying (Pr. 11:13) of slander, or the (wrong) use of tongue (Ps. 101:5) or feet (2 Sa. 19:27). In the NT the words translate accusation
The New Unger’s Bible Dictionary
SLANDER.1. The rendering of the Heb. diblār, “a defaming, evil report” (Num. 14:36, KJV; Ps. 31:13; Prov. 10:18). In 1 Tim. 3:11 the KJV translators render the Gk. diabolous “slanderer” in reference to deacons’ wives.2. The rendering (Ps. 15:3) of Heb. rāgal, to “run about” tattling. The NIV translates,
Harper’s Bible Dictionary
Talebearingtalebearing, gossiping; it is closely connected to slander in the Bible, which condemns both. Lev. 19:15–16 lumps slander together with legal injustice and even false testimony in a capital case, but Proverbs uses the same word to condemn the talebearer and to warn the wise not to associate
Nelson’s New Illustrated Bible Dictionary
SLANDER — evil, malicious talk intended to damage or destroy another person (Ps. 31:13; 50:20; Ezek. 22:9). Slander is prohibited in the ninth commandment: “You shall not bear false witness against your neighbor” (Ex. 20:16; Deut. 5:20). The greatest slanderer of all is the Devil, or Satan—the adversary
International Standard Bible Encyclopedia
SLANDER<slan’-der> (substantive, [דִּבָּה‎, dibbah], “slander”; [διάβολος, diabolos], “slanderer”; verb [רָגַל‎, raghal], “to slink about” as a talebearer, [לָשַׁן‎, lashan], “to use the tongue,” “to slander”; [διαβάλλω, diaballo], “to calumniate,” “to slander”; and other words): Slander
MAKEBATES<mik’-bats>: This is the plural of the word makebate, which means “one who stirs up strife.” It occurs only in the King James Version margin of 2 Tim 3:3 and Tit 2:3 as an alternative translation of [διάβολοι, diaboloi], which the King James Version renders “false accusers,” and the
Dictionary of Phrase and Fable
Slander, Offence. Slander is a stumbling-block or something which trips a person up (Greek, skan′dalon, through the French esclandre). Offence is the striking of our foot against a stone (Latin, ob fendo, as scopulum offendit navis, the ship struck against a rock).
Ecclesiastical Dictionary: Containing, in Concise Form, Information upon Ecclesiastical, Biblical, Archæological, and Historical Subjects
Calumny and Slander.—Calumny is, correctly speaking, a false and injurious charge against another, such as imputing to him habits that he does not possess, or sins which he has not committed.—Slander consists in spreading or exaggerating evil reports, unjustly tending to injure our neighbor’s reputation;
Pocket Dictionary of Ethics
slander. The act of uttering false statements, or disseminating misinformation, for the purpose of defaming or injuring the reputation of another person. Technically, slander occurs when the defamatory statement is articulated in a transient form such as audible speech. When the form is more permanent,
calumny. A false or malicious statement issued with the intent to do *harm to a person’s character or reputation. Calumny is *slander. Insofar as it entails the defamation of character, it becomes the grounds for potential legal action.
Holman Illustrated Bible Dictionary
SLANDER To speak critically of another person with the intent to hurt (Lev. 19:16). In a court of law it means to falsely accuse another (Exod. 20:16; Deut. 5:20). Jesus said, “I tell you that on the day of judgment people will have to account for every careless word they speak” (Matt. 12:36 HCSB). This
Key passages
Le 19:16

You shall not go about with slander among your people; you shall not endanger your neighbor’s life; I am Yahweh.

Ps 101:5

One who slanders his neighbor in secret, him I will destroy. One haughty of eyes and arrogant of heart, him I will not endure.

Pr 11:9

With a mouth, the godless shall destroy his neighbor, but by knowledge the righteous are delivered.

Ro 1:29–31

being filled with all unrighteousness, wickedness, greediness, malice, full of envy, murder, strife, deceit, malevolence. They are gossipers, slanderers, haters of God, insolent, arrogant, boasters, contrivers of evil, disobedient to parents, senseless, faithless, unfeeling, unmerciful,

2 Co 12:20

For I am afraid lest somehow when I arrive, I will not find you as I want, and I may be found by you as you do not want. I am afraid lest somehow there will be strife, jealousy, outbursts of anger, selfish ambition, slander, gossip, pride, disorder.

See also
Ge 31:1–21; Ge 37:1–11; Ge 39:1–23; Ex 20:1–17; Ex 23:1–9; Le 19:9–18; Dt 5:1–22; Dt 22:13–30; Jdg 9:22–57; 1 Sa 22:6–23; 1 Sa 24:1–22; 2 Sa 3:22–30; 2 Sa 10:1–19; 2 Sa 16:1–4; 2 Sa 19:24–30; 1 Ki 21:1–16; 1 Ch 19:1–19; Ezr 4:6–24; Ne 6:1–14; Es 3:1–15; Job 5:1–27; Ps 15:1–5; Ps 31:1–24; Ps 35:1–28; Ps 41:1–13; Ps 50:1–23; Ps 52:1–9; Ps 64:1–10; Ps 69:1–36; Ps 101:1–8; Ps 109:1–31; Ps 119:17–24; Ps 119:65–72; Ps 120:1–7; Ps 140:1–13; Pr 3:13–35; Pr 6:12–19; Pr 10:18–19; Pr 11:9; Pr 11:12–13; Pr 16:28; Pr 17:4; Pr 17:9; Pr 18:8; Pr 19:5; Pr 19:9; Pr 20:19; Pr 21:28; Pr 24:28–29; Pr 25:8–10; Pr 25:18; Pr 25:23; Pr 26:20; Pr 26:22–28; Pr 30:10; Ec 9:13–10:20; Is 51:1–16; Is 58:1–14; Je 6:1–30; Je 8:18–9:16; Je 18:18–23; Je 20:7–18; Je 38:1–13; La 3:43–66; Eze 22:1–16; Eze 36:1–15; Da 3:8–18; Am 7:10–17; Mt 5:1–12; Mt 11:16–19; Mt 12:31–37; Mt 15:1–20; Mt 26:57–68; Mk 7:1–23; Mk 14:53–65; Mk 15:1–14; Lk 3:1–20; Lk 6:39–45; Lk 23:1–7; Jn 7:10–13; Jn 8:48–59; Jn 10:1–21; Jn 18:39–19:16; Ac 6:8–15; Ac 17:5–9; Ac 24:1–9; Ac 25:1–12; Ro 1:18–32; Ro 3:1–8; 1 Co 4:6–13; 1 Co 6:1–11; 2 Co 6:1–10; 2 Co 12:14–21; Eph 4:25–32; Col 3:1–11; 1 Ti 3:8–13; 1 Ti 5:3–16; 1 Ti 6:3–10; 2 Ti 3:1–9; Tt 2:1–10; Tt 3:1–8; Jas 4:11–12; 1 Pe 1:22–2:3; 1 Pe 2:11–12; 1 Pe 3:8–4:6; 3 Jn 9–12; Jud 5–11; Re 2:8–11; Re 12:7–12;