General English

General Science

  • noun a point where a river starts to flow
  • noun pressure shown as the vertical distance that water falls from the inlet of the collection pipe to the water turbine in a hydroelectric power system
  • verb to be in charge of an organisation or group of people
  • verb to move or move something in a particular direction


  • The small central part of a comet from which the tail or tails of the comet emerge under the heating influence of solar radiation as it approaches the Sun. The head consists of the nucleus, apparently only a few kilometres across, as well as the coma, a mass of material surrounding the nucleus and originating from it.


  • noun a main end part or top of something

Cars & Driving

  • noun the top part of a tool; the heads designed for use with interchangeable head torque wrenches, e.g., come in a variety of shapes, e.g. with open jaw end or ratchet mechanism
  • noun a term used to express the increase of energy content in a fluid pumped, expressed in units of energy per unit of mass, usually simply ft (feet)


  • adjective most important or main
  • noun the top part or first part


  • noun data that indicates the start address of a list of items stored in memory
  • noun the start of a reel of recording tape
  • noun the top part of a device, network or body
  • verb to be the first item of data in a list


  • The top of almost anything, such as the head of a nail or a window head.
  • In roofing, a tile of normal width but only half the normal length, and used in constructing the eaves course.
  • The horizontal member across the top of a window or door between the jambs, sometimes offering structural support for construction above it.
  • The measure of the pressure of water, expressed in feet of water. One psi equals 2.31 feet of water.


  • A device which reads, records, or erases signals on a storage medium such as a magnetic tape or a disk drive. Examples include recording heads, read/write heads, and erase heads.
  • In computers, the top or start of something, such as a program, document, page, or the like.

Information & Library Science

  • noun the top or most important part or person

Media Studies

  • noun a heading at the top of a text, e.g. a newspaper headline or a title
  • verb to be or supply a heading on a printed page


  • noun the round top part of the body, which contains the eyes, nose, mouth, brain, etc
  • noun a rounded top part of a bone which fits into a socket


  • verb to put a title to a chapter or page, etc.


  • noun an aficionado of the drug-using counterculture, a drug-user. A word used by hippies to refer to themselves. The term originally simply meant a person or individual in the slang of black jazz musicians and, later, white hipsters.
  • noun a toilet. This is the singular form of the heads, the earlier designation for shipboard latrines.
  • noun oral sex, particularly fellatio. The word in this sense is usually encountered in the phrase give head.


  • verb to use the head to hit a ball

Origin & History of “head”

The word head can be traced back ultimately to Indo-European *kauput-, *kaupet-, which probably had connotations of ‘bowl’ (as in ‘skull’) as well as ‘head’, although which came first is not clear. from it was descended prehistoric Germanic *khaubutham, *khaubitham, which produced German haupt, Dutch hoofd, Swedish huvud, and English head. A variant of the Indo-European ancestor, *kaput-, seems to have been responsible for the Latin word for ‘head’, caput (source of a wide range of English words, including capillary, capital, captain, and chief), and also for Sanskrit kapucchala- ‘hair at the back of the head’ and Danish hoved ‘head’. And a further related form, *keup-, produced English hive, Latin cūpa ‘barrel’, and medieval Latin cuppa (source of English cup and German kopf ‘head’).