to move or thrust the body forward suddenly and powerfully, especially towards something or someone
The matador dodged as the bull lunged at him.
She lunged forward to catch the falling vase.
✦ Mid 18th century (as a noun): from French allonger ‘to prolong, thrust forward,’ alteration of Old French alongier, from Latin ad- ‘towards’ + longus ‘long.’ The verb dates from the early 19th century.
a sudden powerful forward thrust of the body, especially with an arm or weapon
The fencer executed a perfect lunge.
The dog's sudden lunge startled the jogger.
an exercise involving stepping forward with one leg while lowering the body until both knees are bent at right angles, often holding weights
She did ten lunges on each leg during her workout.
Walking lunges are great for building leg strength.