1. null set a set that is empty; a set with no members
  2. well-set strongly and firmly constructed
  3. nullified deprived of legal force
  4. dulcet pleasing to the ear
  5. closet a small room (or recess) or cabinet used for storage space
  6. bell seat a seat that has a bell shape (on some 18th century chairs)
  7. nullity the state of nonexistence
  8. panellist a member of a panel
  9. analyst someone who is skilled at interpreting data
  10. callused having tough, thickened areas of skin
  11. calloused having skin made tough and thick through wear
  12. nursed (of an infant) breast-fed
  13. enlist join the military
  14. lanset East Indian tart yellow berrylike fruit
  15. annalist a historian who writes annals
  16. lowset lower than average
  17. Nielsen Danish composer (1865-1931)
  18. nucleoside a glycoside formed by partial hydrolysis of a nucleic acid
  19. dill seed seed of the dill plant used as seasoning
  20. unlaced with laces not tied