1. marsh gas methane gas produced when vegetation decomposes in water
  2. Marshals the United States' oldest federal law enforcement agency is responsible today for protecting the Federal Judiciary and transporting federal prisoners and protecting federal witnesses and managing assets seized from criminals and generally ensuring the effective operation of the federal judicial system
  3. marsh hawk common harrier of North America and Europe
  4. mishegaas (Yiddish) craziness; senseless behavior or activity
  5. meshugaas (Yiddish) craziness; senseless behavior or activity
  6. marsh cress annual or biennial cress growing in damp places sometimes used in salads or as a potherb; troublesome weed in some localities
  7. Marches a region in central Italy
  8. marquis a nobleman ranking above a count
  9. mishegoss (Yiddish) craziness; senseless behavior or activity
  10. marquess nobleman (in various countries) ranking above a count
  11. marchioness the wife or widow of a marquis
  12. marshal a military officer of highest rank
  13. Marruecos a kingdom (constitutional monarchy) in northwestern Africa with a largely Muslim population; achieved independence from France in 1956
  14. Marquis humorist who wrote about the imaginary life of cockroaches
  15. margosa large semi-evergreen tree of the East Indies
  16. marriage the state of being a couple voluntarily joined for life
  17. Marks English businessman who created a retail chain (1888-1964)
  18. marquise a noblewoman ranking below a duchess and above a countess
  19. Marshal Saxe a French marshal who distinguished himself in the War of the Austrian Succession (1696-1750)
  20. marshall (in some countries) a military officer of highest rank