To make a short, high-pitched sound. The bird began to pip as the sun rose.
To break through the shell of an egg, as a chick does when hatching. The chick started to pip the egg, signaling it was ready to hatch.
To defeat or surpass someone by a small margin. She managed to pip her opponent at the finish line by just a second.
To remove the small seeds from (fruit). She carefully pipped the grapes before serving them to the children.