mass, mess, miss, moss, muss
Marvelous is a synonym for good. It begins with the letter m.
monkeys
Mash Monk
Unmask? Something un-m..
Minx
mice many
mergedmingled
meliorate
Milk, move and mend are 4 letter works.
mysterious
Motionless is a synonym for calmness. It begins with the letter m.