- major_league team
- majorette
- majority opinion
- majority leader
- majors
- mak
- makaira
- majuscule
- makaira marlina
- makaira albida
- makaira mazara
- makaira nigricans
- makarios iii
- makaira mitsukurii
- makalu
- myrtle warbler
- myrtle
- murder mystery
- metagrobolised
- metagrabolised
- metagrabolized
- mantiger
- manticora
- manticore
- mantichora
- Minotaur
- Midgard
- mythologically born of a gold egg
- myristic acid
- myricales
- myrica pensylvanica
- myristica fragrans
- myrmecophaga jubata
- myrmecobius fasciatus
- myrmecophagidae
- myrmeleontidae
- myrobalan plum
- myroxylon balsamum
- myroxylon
- myrobalan:—an allomorph of
- myroxylon balsamum pereirae
- myroxylon pereirae
- myroxylon toluiferum
- myrtales
- myrrh tree
- myrrhis
- myrtaceous tree
- myrtillocactus
- myrtle bird
- myrtle beech