(ii) Lashown (3956) - the tongue (of man or animals), used literally (as the instrument of licking, eating, or speech), and figuratively (speech, an ingot, a fork of flame, a cove of water). Froma primitive root; properly, to lick; to wag the tongue, i.e. to calumniate:
Especially used in the wisdom literature where the manner of one's "speech" is considered to be the external expression of the character of the speaker. The fool's "speech" is unreliable <Ps. 5:9>, deceitful <Ps. 109:2; 120:2-3; Prov. 6:17>, boastful <Ps. 140:11>, flattering <Prov. 26:28>, slanderous <Ps. 15:3>, and subversive <Prov. 10:31>. The "tongue" of the righteous man heals <Prov. 15:4>. While the "tongue" may be as sharp as sword <Ps. 57:4>, it is a means of giving life to the righteous and death to the wicked: "Death and life are in the power of the tongue: and they that love it shall eat the fruit thereof" <Prov. 18:21>; cf. <21:23; 25:15>.
(from Vine's Expository Dictionary of Biblical Words)
(Copyright (C) 1985, Thomas Nelson Publishers)
(iii) Speech
(iv) (a) 4:11