| monetario | monetary |
| Monetiforme | Chip |
| Money for Nothing | Money for Nothing |
| Money in the Bank | Money in the Bank ladder match |
| Mongala | Mongala Province |
| Mongkut | King Rama IV |
| Mongo Santamaría | Mongo Santamaría |
| Mongoles Khalkha | Khalkha |
| Mongolia | Mongolian |
| Mongolia Exterior | Outer Mongolia |
| Mongolia Interior | Inner Mongolia |
| mongolismo | Down's syndrome |
| mongoloide | mongol |
| Monible | Monible |
| Monica Bellucci | Monica Bellucci |
| Monica Geller | Monica Geller |
| Monica Lewinsky | Monica Lewinsky |
| Monica Seles | Monica Seles |
| Monica Vitti | Monica Vitti |
| Monimiaceae | Monimiaceae |
| Monismo | Monism |
| Monismo anómalo | Anomalous monism |
| monitor | display |
| Monitor de calidad de imagen | Seeing monitor |
| Monitor de computadora | Computer display |
| Monitor Huáscar | Huáscar |
| monitora | monitor |
| monitorización | monitoring |
| Moniz Bandeira | Moniz Bandeira |
| monja | nun |
| monje | monk |
| Monkey Island | Monkey Island |
| Monnaz | Monnaz |
| mono | monkey |
| mono araña | spider monkey |
| mono ardilla | squirrel monkey |
| Mono de capucha | Ipotane |
| monocarril | monorail |
| monoceja | unibrow |
| Monoceros | Unicorn |
| Monochrome Display Adapter | IBM Monochrome Display Adapter |
| monociclo | unicycle |
| Monocotiledónea | Monocotyledon |
| Monocromador | Monochromator |
| monocromo | monochrome |
| Monodontidae | Monodontidae |
| Monofilético | Monophyly |
| monofónico | monophonic |
| monogamia | monogamy |
| Monogenea | Monogenea |
| Monognathidae | Monognathus |
| monografía | monograph |
| monograma | monogram |
| monolingüe | monolingual |
| Monolingüismo | Monolingualism |
| monolito | monolith |
| monologar | soliloquize |
| Monolophosaurus | Monolophosaurus |
| monolítico | monolithic |
