لسنلَسَنٌ Chasteness, or perspicuity, or clearness, of speech, (S, Msb, K,) and eloquence; (Msb;) i. q.  بَيَانٌ: or, as some say, the quality of speaking well: and chasteness, or perspicuity, or eloquence, of speech, and sharpness of tongue. (TA.) لِسَانٌ of a sandal, The thing (هَنَة) projecting  in the fore part thereof. (TA.) See مِسْرَدٌ. b2: لِسَانٌ The tongue [or cock] of a balance: see مِنْجَمٌ in the S and K. b3:  لِسَانٌ In formation, news, or tidings; syn. خَبَرٌ. (S in art. علو.) See a verse cited voce عُلْوٌ.تَلَسُّنٌ: see خَلِيَّةٌ, voce خَلِىٌّ مُلَسَّنٌ, (S,) or with ة, (K,) A sandal long and slender, like the form of the tongue: (S, K:) or having the extremity of its fore part like the extremity of the tongue. (TA.)