1. upper-level at an elevated level in rank or importance
  2. water level the level of the surface of a body of water
  3. April Fools' the first day of April which is celebrated by playing practical jokes
  4. upper class the class occupying the highest position in the social hierarchy
  5. Abney level a surveying instrument consisting of a spirit level and a sighting tube; used to measure the angle of inclination of a line from the observer to the target
  6. Upper Volta a desperately poor landlocked country in western Africa
  7. upper-lower-class occupying the upper part of the lower class
  8. oppressively in a heavy and oppressive way
  9. upper-class occupying the highest socioeconomic position in a society
  10. operatively in a manner to produce an effect
  11. support level (stock market) the price at which a certain security becomes attractive to investors
  12. order Ulvales an order of protoctist
  13. April fool a practical joke or trick played on the first day of April
  14. upper-middle-class occupying the upper part of the middle socioeconomic range in a society
  15. upper limit the largest possible quantity
  16. supperless without supper
  17. April Fools' day the first day of April which is celebrated by playing practical jokes
  18. irrelevant having no bearing on or connection with the subject at issue
  19. Abronia villosa soft-haired sticky plant with heads of bright pink trumpet-shaped flowers; found in sandy desert soil; after ample rains may carpet miles of desert with pink from the southwestern United States to northern Mexico
  20. Upper Avon a river in central England that flows through Stratford-on-Avon and empties into the Severn