1. apple rust rust fungus causing rust spots on apples and pears etc
  2. appreciate be fully aware of; realize fully
  3. apologist a person who argues to defend some policy or institution
  4. whole rest a musical rest equal in duration to four beats in common time
  5. apiarist a farmer who keeps bees for their honey
  6. upthrust a rise of land to a higher elevation
  7. apple nut nutlike seed of a South American palm
  8. apple-sized having the approximate size of an apple
  9. applause a demonstration of approval by clapping the hands together
  10. appressed pressed close to or lying flat against something
  11. applesauce puree of stewed apples usually sweetened and spiced
  12. boilersuit a loose protective coverall or smock worn over ordinary clothing for dirty work
  13. upper crust the class occupying the highest position in the social hierarchy
  14. apple tart a small open pie filled with sliced apples and sugar
  15. apple mint mint with apple-scented stems of southern and western Europe
  16. applecart a handcart from which apples and other fruit are sold in the street
  17. apprise inform somebody of something
  18. applemint mint with apple-scented stems of southern and western Europe
  19. applet a Java application
  20. applicant a person who requests or seeks something