The term PEACH CENTER is composed of two words, STONE and PIT. The word STONE is a five-letter noun that refers to a hard, solid material found in nature, such as rocks or boulders. The word PIT is a three-letter noun that refers to a large hole or depression in the ground, often caused by erosion or excavation. Together, these two words form the term PEACH CENTER, which is used to describe the center of a peach fruit, where the PIT is located.