To cut or pass through with or as if with a sharp instrument; stab or penetrate. To make a hole or opening in; perforate. To make a way through: The path pierced the wilderness. To sound sharply through: His shout pierced the din. To succeed in penetrating (something) with the eyes or the intellect: Large glowing yellow eyes pierced the darkness. To penetrate into or through something: The rocket pierced through space.