on one's heels
01
closely following or pursuing someone or something, often in a persistent or bothersome manner
![on {one's} [heels] definition and meaning](https://cdn.langeek.co/photo/42800/original/?type=jpeg "on {one's} [heels] definition and meaning")
Idiom
Informal
예시들
They are on his heels, pressuring him to meet their expectations and demands.
02
near the point of surpassing a fellow competitor
![on {one's} [heels] definition and meaning](https://cdn.langeek.co/photo/66324/original/?type=jpeg "on {one's} [heels] definition and meaning")
IdiomInformal예시들
In the final lap of the race, the second-place runner was right on the leader's heels, ready to make a move.
