lunge (l?nj)n.1. A sudden thrust or pass, as with a sword.2. A sudden forward movement or plunge.v. lunged, lung·ing, lung·es v.intr.1. To make a sudden thrust or pass.2. To move with a sudden thrust.v.tr. To cause (someone) to lunge.[From alteration of obsolete allonge, to thrust, from French allonger, from Old French alongier, to lengthen : a-, to (from Latin ad-; see ad-) + long, long (from Latin longus; see del- in Indo-European roots).]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.lunge (l?nd?) n1. a sudden forward motion2. (Fencing) fencing a thrust made by advancing the front foot and straightening the back leg, extending the sword arm forwardsvb3. to move or cause to move with a lunge4. (Fencing) (intr) fencing to make a lunge[C18: shortened form of obsolete C17 allonge, from French allonger to stretch out (one’s arm), from Late Latin ?long?re to lengthen. Compare elongate] ?lunger nlunge (l?nd?) n (Horse Training, Riding & Manège) a rope used in training or exercising a horsevb (Horse Training, Riding & Manège) (tr) to exercise or train (a horse) on a lunge[C17: from Old French longe, shortened from allonge, ultimately from Latin longus long1; related to lunge1]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014lunge (l?nd?) n., v. lunged, lung?ing. n. 1. a sudden forward thrust, as with a sword or knife; stab. 2. any sudden forward movement; plunge. v.i. 3. to make a lunge or thrust; move with a lunge. v.t. 4. to thrust (something) forward; cause to lunge: lunging a finger accusingly. [1725?35; earlier longe for French allonge (n.; construed as a longe), allonger (v.) to lengthen, extend, deliver (blows)