ora
  奧拉風
  O·ra n.  A money of account among the Anglo-Saxons, valued, in the Domesday Book, at twenty pence sterling.
  ◄ ►
  Os, n.; pl. Ora   A mouth; an opening; an entrance.
  os
       n 1: a mouth or mouthlike opening
       2: a hard brittle blue-gray or blue-black metallic element that
          is one of the platinum metals; the heaviest metal known
          [syn: osmium, atomic number 76]
       3: (computer science) software that controls the execution of
          computer programs and may provide various services [syn: operating
          system]
       4: the left eye [syn: oculus sinister]
       5: rigid connective tissue that makes up the skeleton of
          vertebrates [syn: bone]
       [also: ossa (pl), osar (pl), ora (pl)]