noun The upper part of the human body, or the front or upper part of the body of an animal, typically separated from the rest of the body by a neck, and containing the brain, mouth, and sense organs. A thing resembling a head either in form or in relation to a whole. The front, forward, or upper part or end of something. A person in charge of something; a director or leader. (the head of the Dutch Catholic Church) A person considered as a numerical unit. (they paid fifty dollars a head) A component in an audio, video, or information system by which information is transferred from an electrical signal to the recording medium, or vice versa. A body of water kept at a particular height in order to provide a supply at sufficient pressure. (an 8 m head of water in the shafts) A toilet or bathroom on a boat or ship. (they were cleaning out the heads) The word that governs all the other words in a phrase in which it is used, having the same grammatical function as the whole phrase. A superficial deposit of rock fragments, formed at the edge of an ice sheet by repeated freezing and thawing and then moved downhill. (Larger-scale climatic changes or tectonic changes in the hinterland produce relative changes in the main agents of deposition and entrenchment of the upper fan (the fan head).)