Definition: The word "grumman8" doesn't appear in the Bible, but the phrase "grumman8" refers to a type of aircraft known for its innovative design and reliability. In the Bible, the term is associated with the ancient Greek name "grumma," which originally meant "to fly" or "to sail." The word "8" was part of an acronym that referred to the number of wings on a Grumman 8 reconnaissance plane.