1. To travel over the top of something by jumping or vaulting. He tried to leap over the waist-high wall, but he caught his toe and fell flat on his face. Originally, Superman didn't actually fly—he just leaped over really tall buildings. Weird, huh?
2. To traverse some distance or the breadth of something by jumping or leaping. I told my brother to leap over, but he was too scared that he wouldn't clear the ditch. You'll have to leap over the gap between the two buildings.
leap over something
to jump over something. The dog leapt over the hedge and chased the rabbit around the corner of the house. Please don't leap over my roses. You'll damage them.