1. William Penn Adair Rogers United States humorist remembered for his homespun commentary on politics and American society (1879-1935)
  2. billion-dollar grass coarse annual grass cultivated in Japan and southeastern Asia for its edible seeds and for forage; important wildlife food in United States
  3. Unknown Soldier an unidentified soldier whose body is honored as a memorial
  4. all-knowing infinitely wise
  5. yellow watercress annual or biennial cress growing in damp places sometimes used in salads or as a potherb; troublesome weed in some localities
  6. walking papers (informal) a notice of dismissal or discharge
  7. Walking horse a horse marked by stamina and trained to move at a fast running walk
  8. electric charge the quantity of unbalanced electricity in a body (either positive or negative) and construed as an excess or deficiency of electrons
  9. well-known widely or fully known
  10. Will Rogers United States humorist remembered for his homespun commentary on politics and American society (1879-1935)
  11. alligator grass prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses
  12. enlarger photographic equipment consisting of an optical projector used to enlarge a photograph
  13. filtration surgery eye surgery that opens a passage allowing excess aqueous humor to drain into surrounding tissues; a treatment for glaucoma
  14. walking on air a state of extreme happiness
  15. electrosurgery surgery performed with electrical devices
  16. Volcano Islands a group of Japanese Islands in the northwestern Pacific Ocean to the north of the Marianas
  17. Algonquian language family of North American Indian languages spoken from Labrador to South Carolina and west to the Great Plains
  18. unknowingness unconsciousness resulting from lack of knowledge or attention
  19. alkane series a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)
  20. unknown region an unknown and unexplored region