1 قَتَلَ الشَّىْءَ  , inf. n. قَتْلٌ, (assumed tropical:) He knew the thing; he was, or became, acquainted with it: (Msb:) [or rather, i. q.] قَتَلَهُ عِلْمًا, (Bd in iv. 156, and TA,) and خُبْرًا, (K,) and بِعِلْمِهِ, (Bd, ubi supra,) he knew it (Bd, K, TA) completely, (TA,) or thoroughly, very well, or superlatively well; as also نَحَرَهُ عِلْمًا. (Bd.) See أَثْبَتَ الشَّىْء مَعْرِفَةً in art. ثبت. 2 قَتَّلَ ذ : see a verse cited in art. عتب, conj. 4. 3 قَاتَلَهُ  He fought, or combated, him; contended with him in fight or conflict or battle. قَاتَلَ عَلَى دِيِن اللّٰهِ: see 3 in art. ازى. 5 تَقَتَّلَتْ لَهُ  means تَخَضَّعَتْ لَهُ وَتَذَلَّلَتْ حَتَّى عَشِقَهَا. (A.) 10 اِسْتَقْتَلَ  [properly He sought, or courted, slaughter;] i. q. اِسْتَمَاتَ; (S, K;) meaning he cared not for death, by reason of his courage; (JM;) he resigned and subjected himself to slaughter, and cared not for death. (Mgh.) قَتْلٌ  : from this word is formed the pl. قُتُولٌ, on the authority of hearsay. (El-Jurjánee, in Msb, art. قصد.) قَتَّالٌ ذ [Murderous; slaughterous; very deadly.] You say حَيَّةٌ قَتَّالَهٌ [A very deadly serpent]. (TA in art. اصل.) قَاتِلٌ ذ Deadly; applied to a tree; (K in art. خمط;) and to poison. (TA in that art.) مَقْتَلٌ  A [vital] place in a man [or an animal, i. e.] where a wound causes death; (S, Msb;) as the temple: (Msb:) pl. مَقَاتِلُ. (S.) وَلِنِّى مَقَاتِلَكَ  means حَوِّلْ إِِلَىَّ وَجْهَكَ. (A.) مُسْتَقْتِلٌ  : see مُسْتَمِيتٌ.