- majolica
- maiolica
- monkey nut
- Mokulu
- malay archipelago
- malabar kino
- Middle English
- micrurus fulvius
- Malayo_Polynesian
- meadowlark
- mycophage
- mycophagist
- mobile canteen
- mycophagy
- McIntosh
- mentha citrata
- myasthenic syndrome
- manifestation
- man of the cloth
- medieval mode
- metacyesis
- moulting
- maternity
- molting
- molt
- moult
- military group
- military unit
- military force
- millenary
- mass unit
- microgram
- mol
- metric hundredweight
- mcg
- metric grain
- myriagram
- myg
- Mbit
- mebibit
- Mibit
- megabit
- marvellous
- marvelous
- mod con
- Merlangus merlangus
- Melanogrammus aeglefinus
- Molva molva
- modality
- massage