Source : Webster's Revised Unabridged Dictionary (1913)

Saber \Sa"ber\, Sabre \Sa"bre\, n. [F. sabre, G. s["a]bel; of
   uncertain origin; cf. Hung. sz['a]blya, Pol. szabla, Russ.
   sabla, and L. Gr. zabo`s crooked, curved.]
   A sword with a broad and heavy blade, thick at the back, and
   usually more or less curved like a scimiter; a cavalry sword.

   {Saber fish}, or {Sabre fish} (Zo["o]l.), the cutlass fish.

Saber \Sa"ber\, Sabre \Sa"bre\, v. t. [imp. & p. p. {Sabered}or
   {Sabred}; p. pr. & vb. n. {Sabering} or {Sabring}.] [Cf. F.
   sabrer.]
   To strike, cut, or kill with a saber; to cut down, as with a
   saber.

         You send troops to saber and bayonet us into
         submission.                              --Burke.

Sabre \Sa"bre\, n. & v.
   See {Saber}.

Source : WordNet®

sabre
     n 1: a fencing sword with a v-shaped blade and a slightly curved
          handle [syn: {saber}]
     2: a stout sword with a curved blade and thick back [syn: {cavalry
        sword}, {saber}]

sabre
     v 1: cut or injure with a saber [syn: {saber}]
     2: kill with a saber [syn: {saber}]