1. mastermind someone who has exceptional intellectual ability and originality
  2. mistrust regard with suspicion
  3. misrepresent describe or present falsely
  4. mistreatment the practice of regarding (someone or something) badly
  5. phosphorescent emitting light without appreciable heat
  6. master sergeant a senior noncommissioned officer in the Army or Marines
  7. putrescent in a state of decay or decomposition
  8. omnipresent existing everywhere at once
  9. mustard agent a toxic war gas with sulfide based compounds that raises blisters and attacks the eyes and lungs; there is no known antidote
  10. misdirect lead someone in the wrong direction or give someone wrong directions
  11. poste restante a notation written on mail that is to be held at the post office until called for (not in the United States or Canada)
  12. Streisand United States singer and actress (born in 1942)
  13. quattrocento the 15th century in Italian art and literature
  14. mysterious beyond ordinary understanding
  15. Easter Sunday the day on which the festival of Easter is celebrated
  16. mistreated subjected to cruel treatment
  17. moisturize make less dry
  18. moisturise make (more) humid
  19. master cylinder a cylinder that contains brake fluid that is compressed by a piston
  20. mastering becoming proficient in the use of something