Woman & Man
Miami Beach is a place with two words that start with M and B. Manhattan Beach and Malibu Beach are others.
One possibility is "mixed company".
mount rushmore
Two animal behavior words starting with M are mating and migration.
This is because two concepts are derived from the newtons second law. First : Force . F = m * a Second : momentum .. p = m * v
Some five letter words with O and M as the second and third letter are:combocometcommacomicdomedhomerhomeymommynomadoomphromanromeorompervomitwomanwomen
Hope Mills is a town in Cumberland County, North Carolina.
Mont Clare
M&M Meats or Magellan Minerals?
One six-letter word with "m" as the second letter is "flame."
sMasH
amum