Celt/kelt/ Definition 1 of 2Pro Tip 1/3Archeological Term Used mainly in archaeology, referring to old tools made of stone or metal. The museum's exhibit on early human life displayed several celts. Pro Tip 2/3Not Modern It signals an item from thousands of years ago, not used today. Finding a celt during the dig confirmed the site's ancient origins. Pro Tip 3/3Specific Item Refers to specific ancient tools, not just any old tool. Among the discoveries was a finely crafted celt, indicative of skilled workmanship.