- magneton
- mislead
- multiplicity
- muchness
- mississippi
- moonseed family
- Myristicaceae
- Myristica
- Menispermum
- Malpighia obovata
- Malpighia glabra
- mulberry family
- mangrove family
- myrtle family
- Moraceae
- milkweed family
- Menyanthaceae
- maple family
- myrsine family
- Myrtaceae
- Myricaceae
- morning_glory family
- Myrsinaceae
- Myrcia
- Mangifera
- Monardella
- Myrsine
- Morus
- Manilkara
- Melicocca
- Myrica
- Myriophyllum
- Mandevilla
- Malosma
- Melicoccus
- Menyanthes
- major fast day
- major depressive episode
- major in
- major form class
- major league
- major leaguer
- major premiss
- major lobe
- major power
- major premise
- major mode
- major_domo
- major term
- majorca