Cathead is a term commonly used to describe a type of heavy-duty anchor. This kind of anchor is typically seen on larger boats and vessels, and provides excellent holding power in a variety of weather conditions and sea states. Other common synonyms for cathead include "fluke anchor," "admiralty anchor," and "stockless anchor." Regardless of the specific term used, these types of anchors are an important piece of equipment for any serious boater or sailor. They provide a reliable and effective means of securing a vessel in place, whether temporarily or for extended periods of time.