Source : Webster's Revised Unabridged Dictionary (1913)

   {Half hitch}, a sailor's knot in a rope; half of a clove
      hitch.

   {Half hose}, short stockings; socks.

   {Half measure}, an imperfect or weak line of action.

   {Half note} (Mus.), a minim, one half of a semibreve.

   {Half pay}, half of the wages or salary; reduced pay; as, an
      officer on half pay.

   {Half price}, half the ordinary price; or a price much
      reduced.

   {Half round}.
      (a) (Arch.) A molding of semicircular section.
      (b) (Mech.) Having one side flat and the other rounded; --
          said of a file.

   {Half shift} (Mus.), a position of the hand, between the open
      position and the first shift, in playing on the violin and
      kindred instruments. See {Shift}.

   {Half step} (Mus.), a semitone; the smallest difference of
      pitch or interval, used in music.

   {Half tide}, the time or state of the tide equally distant
      from ebb and flood.

   {Half time}, half the ordinary time for work or attendance;
      as, the half-time system.

   {Half tint} (Fine Arts), a middle or intermediate tint, as in
      drawing or painting. See {Demitint}.

   {Half truth}, a statement only partially true, or which gives
      only a part of the truth. --Mrs. Browning.

   {Half year}, the space of six months; one term of a school
      when there are two terms in a year.

Source : WordNet®

half note
     n : a musical note having the time value of half a whole note
         [syn: {minim}]