- monomorphic
- monomorphous
- Monongahela River
- mononuclear
- mononuclears
- mononucleoses
- mononucleosis
- mononucleotide
- monopetalous
- monophagous
- monophobia
- monophonic
- monophonies
- monophonous
- monophony
- monophthong
- monophthongs
- monophyletic
- Monophysite
- Monophysites
- monoplane
- monoplegia
- monoplegias
- monoploid
- monoploids