Source : Webster's Revised Unabridged Dictionary (1913)

Head \Head\, n. [OE. hed, heved, heaved, AS. he['a]fod; akin to
   D. hoofd, OHG. houbit, G. haupt, Icel. h["o]fu?, Sw. hufvud,
   Dan. hoved, Goth. haubip. The word does not corresponds
   regularly to L. caput head (cf. E. {Chief}, {Cadet},
   {Capital}), and its origin is unknown.]
   1. The anterior or superior part of an animal, containing the
      brain, or chief ganglia of the nervous system, the mouth,
      and in the higher animals, the chief sensory organs; poll;
      cephalon.

   2. The uppermost, foremost, or most important part of an
      inanimate object; such a part as may be considered to
      resemble the head of an animal; often, also, the larger,
      thicker, or heavier part or extremity, in distinction from
      the smaller or thinner part, or from the point or edge;
      as, the head of a cane, a nail, a spear, an ax, a mast, a
      sail, a ship; that which covers and closes the top or the
      end of a hollow vessel; as, the head of a cask or a steam
      boiler.

   3. The place where the head should go; as, the head of a bed,
      of a grave, etc.; the head of a carriage, that is, the
      hood which covers the head.

   4. The most prominent or important member of any organized
      body; the chief; the leader; as, the head of a college, a
      school, a church, a state, and the like. ``Their princes
      and heads.'' --Robynson (More's Utopia).

            The heads of the chief sects of philosophy.
                                                  --Tillotson.

            Your head I him appoint.              --Milton.

   5. The place or honor, or of command; the most important or
      foremost position; the front; as, the head of the table;
      the head of a column of soldiers.

            An army of fourscore thousand troops, with the duke
            Marlborough at the head of them.      --Addison.

   6. Each one among many; an individual; -- often used in a
      plural sense; as, a thousand head of cattle.

            It there be six millions of people, there are about
            four acres for every head.            --Graunt.

   7. The seat of the intellect; the brain; the understanding;
      the mental faculties; as, a good head, that is, a good
      mind; it never entered his head, it did not occur to him;
      of his own head, of his own thought or will.

            Men who had lost both head and heart. --Macaulay.

   8. The source, fountain, spring, or beginning, as of a stream
      or river; as, the head of the Nile; hence, the altitude of
      the source, or the height of the surface, as of water,
      above a given place, as above an orifice at which it
      issues, and the pressure resulting from the height or from
      motion; sometimes also, the quantity in reserve; as, a
      mill or reservoir has a good head of water, or ten feet
      head; also, that part of a gulf or bay most remote from
      the outlet or the sea.

   9. A headland; a promontory; as, Gay Head. --Shak.

   10. A separate part, or topic, of a discourse; a theme to be
       expanded; a subdivision; as, the heads of a sermon.

   11. Culminating point or crisis; hence, strength; force;
       height.

             Ere foul sin, gathering head, shall break into
             corruption.                          --Shak.

             The indisposition which has long hung upon me, is
             at last grown to such a head, that it must quickly
             make an end of me or of itself.      --Addison.

   12. Power; armed force.

             My lord, my lord, the French have gathered head.
                                                  --Shak.

   13. A headdress; a covering of the head; as, a laced head; a
       head of hair. --Swift.

   14. An ear of wheat, barley, or of one of the other small
       cereals.

   15. (Bot.)
       (a) A dense cluster of flowers, as in clover, daisies,
           thistles; a capitulum.
       (b) A dense, compact mass of leaves, as in a cabbage or a
           lettuce plant.

   16. The antlers of a deer.

   17. A rounded mass of foam which rises on a pot of beer or
       other effervescing liquor. --Mortimer.

   18. pl. Tiles laid at the eaves of a house. --Knight.

   Note: Head is often used adjectively or in self-explaining
         combinations; as, head gear or headgear, head rest. Cf.
         {Head}, a.

   {A buck of the first head}, a male fallow deer in its fifth
      year, when it attains its complete set of antlers. --Shak.

   {By the head}. (Naut.) See under {By}.

   {Elevator head}, {Feed head}, etc. See under {Elevator},
      {Feed}, etc.

   {From head to foot}, through the whole length of a man;
      completely; throughout. ``Arm me, audacity, from head to
      foot.'' --Shak.

   {Head and ears}, with the whole person; deeply; completely;
      as, he was head and ears in debt or in trouble. [Colloq.]
      

   {Head fast}. (Naut.) See 5th {Fast}.

   {Head kidney} (Anat.), the most anterior of the three pairs
      of embryonic renal organs developed in most vertebrates;
      the pronephros.

   {Head money}, a capitation tax; a poll tax. --Milton.

   {Head pence}, a poll tax. [Obs.]

   {Head sea}, a sea that meets the head of a vessel or rolls
      against her course.

   {Head and shoulders}.
       (a) By force; violently; as, to drag one, head and
           shoulders. ``They bring in every figure of speech,
           head and shoulders.'' --Felton.
       (b) By the height of the head and shoulders; hence, by a
           great degree or space; by far; much; as, he is head
           and shoulders above them.

   {Head or tail}, this side or that side; this thing or that;
      -- a phrase used in throwing a coin to decide a choice,
      guestion, or stake, head being the side of the coin
      bearing the effigy or principal figure (or, in case there
      is no head or face on either side, that side which has the
      date on it), and tail the other side.

   {Neither head nor tail}, neither beginning nor end; neither
      this thing nor that; nothing distinct or definite; -- a
      phrase used in speaking of what is indefinite or confused;
      as, they made neither head nor tail of the matter.
      [Colloq.]

   {Head wind}, a wind that blows in a direction opposite the
      vessel's course.

   {Out one's own head}, according to one's own idea; without
      advice or co["o]peration of another.

   {Over the head of}, beyond the comprehension of. --M. Arnold.

Head \Head\, a.
   Principal; chief; leading; first; as, the head master of a
   school; the head man of a tribe; a head chorister; a head
   cook.

Head \Head\, v. t. [imp. & p. p. {Headed}; p. pr. & vb. n.
   {Heading}.]
   1. To be at the head of; to put one's self at the head of; to
      lead; to direct; to act as leader to; as, to head an army,
      an expedition, or a riot. --Dryden.

   2. To form a head to; to fit or furnish with a head; as, to
      head a nail. --Spenser.

   3. To behead; to decapitate. [Obs.] --Shak.

   4. To cut off the top of; to lop off; as, to head trees.

   5. To go in front of; to get in the front of, so as to hinder
      or stop; to oppose; hence, to check or restrain; as, to
      head a drove of cattle; to head a person; the wind heads a
      ship.

   6. To set on the head; as, to head a cask.

   {To head off}, to intercept; to get before; as, an officer
      heads off a thief who is escaping.

   {To head up}, to close, as a cask or barrel, by fitting a
      head to.

Head \Head\, v. i.
   1. To originate; to spring; to have its source, as a river.

            A broad river, that heads in the great Blue Ridge.
                                                  --Adair.

   2. To go or point in a certain direction; to tend; as, how
      does the ship head?

   3. To form a head; as, this kind of cabbage heads early.

Source : WordNet®

head
     n 1: the upper part of the human body or the front part of the
          body in animals; contains the face and brains; "he stuck
          his head out the window" [syn: {caput}]
     2: a single domestic animal; "200 head of cattle"
     3: that which is responsible for one's thoughts and feelings;
        the seat of the faculty of reason; "his mind wandered"; "I
        couldn't get his words out of my head" [syn: {mind}, {brain},
         {psyche}, {nous}]
     4: a person who is in charge; "the head of the whole operation"
        [syn: {chief}, {top dog}]
     5: the front of a military formation or procession; "the head
        of the column advanced boldly"; "they were at the head of
        the attack" [ant: {rear}]
     6: the pressure exerted by a fluid; "a head of steam"
     7: the top of something; "the head of the stairs"; "the head of
        the page"; "the head of the list" [ant: {foot}]
     8: the source of water from which a stream arises; "they
        tracked him back toward the head of the stream" [syn: {fountainhead},
         {headspring}]
     9: (grammar) the word in a grammatical constituent that plays
        the same grammatical role as the whole constituent [syn: {head
        word}]
     10: the tip of an abscess (where the pus accumulates)
     11: the length or height based on the size of a human or animal
         head; "he is two heads taller than his little sister";
         "his horse won by a head"
     12: a dense clusters of flowers or foliage; "a head of
         cauliflower"; "a head of lettuce" [syn: {capitulum}]
     13: the educator who has executive authority for a school; "she
         sent unruly pupils to see the principal" [syn: {principal},
          {school principal}, {head teacher}]
     14: an individual person; "tickets are $5 per head"
     15: a user of (usually soft) drugs; "the office was full of
         secret heads"
     16: a rounded compact mass; "the head of a comet"
     17: the foam or froth that accumulates at the top when you pour
         an effervescent liquid into a container; "the beer had a
         large head of foam"
     18: the part in the front or nearest the viewer; "he was in the
         forefront"; "he was at the head of the column" [syn: {forefront}]
     19: a difficult juncture; "a pretty pass"; "matters came to a
         head yesterday" [syn: {pass}, {straits}]
     20: forward movement; "the ship made little headway against the
         gale" [syn: {headway}]
     21: a V-shaped mark at one end of an arrow pointer; "the point
         of the arrow was due north" [syn: {point}]
     22: the subject matter at issue; "the question of disease merits
         serious discussion"; "under the head of minor Roman
         poets" [syn: {question}]
     23: a line of text serving to indicate what the passage below it
         is about; "the heading seemed to have little to do with
         the text" [syn: {heading}, {header}]
     24: the rounded end of a bone that bits into a rounded cavity in
         another bone to form a joint; "the head of the humerus"
     25: that part of a skeletal muscle that is away from the bone
         that it moves
     26: (computer science) a tiny electromagnetic coil and metal
         pole used to write and read magnetic patterns on a disk
         [syn: {read/write head}]
     27: (usually plural) an obverse side of a coin that bears the
         representation of a person's head; "call heads or tails!"
         [ant: {tail}]
     28: the striking part of a tool; "the head of the hammer"
     29: (nautical) a toilet on board a boat or ship
     30: a projection out from one end; "the head of the nail", "a
         pinhead is the head of a pin"
     31: a membrane that is stretched taut over a drum [syn: {drumhead}]
     32: oral-genital stimulation; "they say he gives good head"
         [syn: {oral sex}]

head
     v 1: to go or travel towards; "where is she heading"; "We were
          headed for the mountains"
     2: be in charge of; "Who is heading this project?" [syn: {lead}]
     3: travel in front of; go in advance of others; "The procession
        was headed by John" [syn: {lead}]
     4: be the first or leading member of (a group) and excel; "This
        student heads the class" [syn: {head up}]
     5: direct the course; determine the direction of travelling
        [syn: {steer}, {maneuver}, {manoeuver}, {manoeuvre}, {direct},
         {point}, {guide}, {channelize}, {channelise}]
     6: take its rise; "These rivers head from a mountain range in
        the Himalayas"
     7: be in the front of or on top of; "The list was headed by the
        name of the president"
     8: form a head or come or grow to a head; "The wheat headed
        early this year"
     9: remove the head of; "head the fish"