1. master file (computer science) a computer file that is used as the authority in a given job and that is relatively permanent
  2. masterful having or revealing supreme mastery or skill
  3. masterfully in a skillfully masterful manner; with the skill of a master
  4. masterly having or revealing supreme mastery or skill
  5. Master of Laws an advanced law degree
  6. muster roll a list of names of officers and men in a military unit or ship's company
  7. muster call a call of the names of personnel at a military assembly
  8. mysteriously in a cryptic manner
  9. matter of law a disputed legal contention that is generally left for a judge to decide
  10. mystery play a medieval play representing episodes from the life of Christ
  11. mystery novel novel in which the reader is challenged to solve a puzzle before the detective explains it at the end
  12. masterpiece the most outstanding work of a creative artist or craftsman
  13. computer file a file maintained in computer-readable form
  14. master race a race that considers itself superior to all others and fitted to rule the others
  15. Easter lily tall lily have large white trumpet-shaped flowers that bloom in the spring
  16. mastering becoming proficient in the use of something
  17. mastership the position of master
  18. aster family plants with heads composed of many florets: aster
  19. master plan a long-term outline of a project or government function
  20. foster family the family of a fosterling