saucer in WordNet English dictionary

1. something with a round shape resembling a flat circular plate
   "the moon's disk hung in a cloudless sky"
   disk  disc  saucer 
   
2. a disk used in throwing competitions
   discus  saucer 
   
3. directional antenna consisting of a parabolic reflector for microwave or radio frequency radiation
   dish  dish aerial  dish antenna  saucer 
   
4. a small shallow dish for holding a cup at the table
   saucer