1. sardonic disdainfully or ironically humorous
  2. sardonyx an onyx characterized by parallel layers of sard and a different colored mineral
  3. surroundings the environment in which something exists or lives
  4. sardonically in a sarcastic manner
  5. certification documentary proof that something is true
  6. sorting an operation that segregates items into groups according to a specified criterion
  7. certain established beyond doubt or question; definitely known
  8. forty winks sleeping for a short period of time (usually not in bed)
  9. certainly definitely or positively
  10. fire tongs tongs for taking hold of burning coals
  11. serotonin a neurotransmitter involved in e.g. sleep and depression and memory
  12. iridoncus swelling of the iris of the eye
  13. certainty the state of being certain
  14. Writings the third of three divisions of the Hebrew Scriptures
  15. Sardinops pilchards
  16. boardinghouse a private house that provides accommodations and meals for paying guests
  17. distinguish mark as different
  18. boarding house a private house that provides accommodations and meals for paying guests
  19. certificate a document attesting to the truth of certain stated facts
  20. sure thing something that is certain