—v.t. 1. to penetrate into or run through (something), as a sharp, pointed dagger, object, or instrument does.
2. to make a hole or opening in.
3. to bore into or through; tunnel.
4. to perforate.
5. to make (a hole, opening, etc.) by or as by boring or perforating.
6. to make a way or path into or through: a road that pierces the dense jungle. 7. to penetrate with the eye or mind; see into or through: She couldn't pierce his thoughts. 8. to affect sharply with some sensation or emotion, as of cold, pain, or grief: The wind pierced her body. Her words pierced our hearts. 9. to sound sharply through (the air, stillness, etc.): A pistol shot pierced the night.
—v.i. to force or make a way into or through something; penetrate: to pierce to the heart.
Pronunciation: (pērs),[key] —n. 1. Franklin, 1804–69, 14th president of the U.S. 1853–57.
2. John Robinson, born 1910, U.S. electrical engineer: helped develop communications satellites.
3. a male given name, form of Peter.