| Prefix with photo | 17 |
| Prefix with phone or watt | 25 |
| Prefix with phone or vision | 27 |
| Prefix with phone or transmitter | 32 |
| Prefix with phone or gram | 25 |
| Prefix with phone or cycle | 26 |
| Prefix with phone and ton | 25 |
| Prefix with phone and cycle | 27 |
| Prefix with phone | 17 |
| Prefix with phobic | 18 |
| Prefix with phobia or yoga | 26 |
| Prefix with phobia or bat | 25 |
| Prefix with phobia | 18 |
| Prefix with phile or stat | 25 |
| Prefix with phenetidin | 22 |
| Prefix with phase | 17 |
| Prefix with pets or soul | 24 |
| Prefix with pet or phyte | 24 |
| Prefix with personal or planetary | 33 |
| Prefix with perfect | 19 |
| Prefix with peptic | 18 |
| Prefix with penultimate | 23 |
| Prefix with pend | 16 |
| Prefix with pedic or dontic | 27 |
| Prefix with pay or plan | 23 |
| Prefix with pathetic | 20 |
| Prefix with path | 16 |
| Prefix with pass | 16 |
| Prefix with partisan | 20 |
| Prefix with particle | 20 |
| Prefix with parasite | 20 |
| Prefix with paganism | 20 |
| Prefix with pagan | 17 |
| Prefix with pad or taxi | 23 |
| Prefix with pad or port | 23 |
| Prefix with pad | 15 |
| Prefix with oxide | 17 |
| Prefix with owned or occupied | 29 |
| Prefix with orthodox | 20 |
| Prefix with ophthalmology | 25 |
| Prefix with ode or pod | 22 |
| Prefix with nuptial | 19 |
| Prefix with nuke or freeze | 26 |
| Prefix with nucleotide | 22 |
| Prefix with nuclear or plastic | 30 |
| Prefix with nuclear or freeze | 29 |
| Prefix with normal | 18 |
| Prefix with noir | 16 |
| Prefix with nitrile | 19 |
| Prefix with night or light | 26 |
| Prefix with night or day | 24 |
| Prefix with night and day | 25 |
| Prefix with nautical | 20 |
| Prefix with naut or sol | 23 |
| Prefix with national or grain | 29 |
| Prefix with national | 20 |
| Prefix with natal or plastic | 28 |
| Prefix with natal or nuptial | 28 |
| Prefix with natal or noir | 25 |
| Prefix with natal or classical | 30 |
| Prefix with natal | 17 |
| Prefix with nasal that means 'mouth' | 44 |
| Prefix with nasal or facial | 27 |
| Prefix with name or face | 24 |
| Prefix with name or charge | 26 |
| Prefix with mutuel | 18 |
| Prefix with musicology | 22 |
| Prefix with muscular and transmitter | 36 |
| Prefix with mural or venous | 27 |
| Prefix with mural or state | 26 |
| Prefix with mural or party | 26 |
| Prefix with mural or muscular | 29 |
| Prefix with mural or galactic | 29 |
| Prefix with mural | 17 |
| Prefix with mount | 17 |
| Prefix with mother and brother | 30 |
| Prefix with morphosis | 21 |
| Prefix with morphic | 19 |
| Prefix with morph | 17 |
| Prefix with moron | 17 |
| Prefix with monde | 17 |
| Prefix with mom, coined after historic 2009 births | 50 |
| Prefix with mom | 15 |
| Prefix with molecular | 21 |
| Prefix with modulator | 21 |
| Prefix with modern | 18 |
| Prefix with mobile | 18 |
| Prefix with mix | 15 |
| Prefix with mission or press | 28 |
| Prefix with mingle or mix | 25 |
| Prefix with mime or graph | 25 |
| Prefix with millions | 20 |
| Prefix with millionaire | 23 |
| Prefix with metrics or bar | 26 |
| Prefix with metrics | 19 |
| Prefix with metric or tonic | 27 |
| Prefix with metric | 18 |
| Prefix with meter or vise | 25 |
| Prefix with meter or tude | 25 |
| Prefix with meter or trooper | 28 |