There are 8 words that start with 'monon'.
| mononuclear | mononuclears |
| mononucleate | mononucleated |
| mononucleoses | mononucleosis |
| mononucleotide | mononucleotides |
Note: These 8 words that start with 'monon' are found from the USA & Canada version of the tournament Scrabble word list.