| Prefix with nautical | 20 |
| Prefix with night and day | 25 |
| Prefix with night or day | 24 |
| Prefix with night or light | 26 |
| Prefix with nitrile | 19 |
| Prefix with noir | 16 |
| Prefix with normal | 18 |
| Prefix with nuclear or freeze | 29 |
| Prefix with nuclear or plastic | 30 |
| Prefix with nucleotide | 22 |
| Prefix with nuke or freeze | 26 |
| Prefix with nuptial | 19 |
| Prefix with ode or pod | 22 |
| Prefix with ophthalmology | 25 |
| Prefix with orthodox | 20 |
| Prefix with owned or occupied | 29 |
| Prefix with oxide | 17 |
| Prefix with pad | 15 |
| Prefix with pad or port | 23 |
| Prefix with pad or taxi | 23 |
| Prefix with pagan | 17 |
| Prefix with paganism | 20 |
| Prefix with parasite | 20 |
| Prefix with particle | 20 |
| Prefix with partisan | 20 |
| Prefix with pass | 16 |
| Prefix with path | 16 |
| Prefix with pathetic | 20 |
| Prefix with pay or plan | 23 |
| Prefix with pedic or dontic | 27 |
| Prefix with pend | 16 |
| Prefix with penultimate | 23 |
| Prefix with peptic | 18 |
| Prefix with perfect | 19 |
| Prefix with personal or planetary | 33 |
| Prefix with pet or phyte | 24 |
| Prefix with pets or soul | 24 |
| Prefix with phase | 17 |
| Prefix with phenetidin | 22 |
| Prefix with phile or stat | 25 |
| Prefix with phobia | 18 |
| Prefix with phobia or bat | 25 |
| Prefix with phobia or yoga | 26 |
| Prefix with phobic | 18 |
| Prefix with phone | 17 |
| Prefix with phone and cycle | 27 |
| Prefix with phone and ton | 25 |
| Prefix with phone or cycle | 26 |
| Prefix with phone or gram | 25 |
| Prefix with phone or transmitter | 32 |
| Prefix with phone or vision | 27 |
| Prefix with phone or watt | 25 |
| Prefix with photo | 17 |
| Prefix with photo or phone | 26 |
| Prefix with photo or type | 25 |
| Prefix with phrase | 18 |
| Prefix with physical | 20 |
| Prefix with physicist | 21 |
| Prefix with physics | 19 |
| Prefix with physics and chemistry | 33 |
| Prefix with physics or thesis | 29 |
| Prefix with physiology | 22 |
| Prefix with phyte | 17 |
| Prefix with pictures | 20 |
| Prefix with pilot | 17 |
| Prefix with pilot or biography | 30 |
| Prefix with place or grace | 26 |
| Prefix with place or print | 26 |
| Prefix with planar or polar | 27 |
| Prefix with plane | 17 |
| Prefix with plane or dynamics | 29 |
| Prefix with plane or gram | 25 |
| Prefix with plane or sol | 24 |
| Prefix with plane or space | 26 |
| Prefix with plane or tone | 25 |
| Prefix with plane, to a Brit | 28 |
| Prefix with plankton | 20 |
| Prefix with plano | 17 |
| Prefix with plasm | 17 |
| Prefix with plasm and morph | 27 |
| Prefix with plasm or classic | 28 |
| Prefix with plasm or derm | 25 |
| Prefix with plasm or morphic | 28 |
| Prefix with plasm or type | 25 |
| Prefix with plastic | 19 |
| Prefix with plasty | 18 |
| Prefix with platonic | 20 |
| Prefix with play or act | 23 |
| Prefix with play or band | 24 |
| Prefix with play or cast | 24 |
| Prefix with play or scope | 25 |
| Prefix with play or step | 24 |
| Prefix with plop | 16 |
| Prefix with plunk | 17 |
| Prefix with plunk or flop | 25 |
| Prefix with plunk or plop | 25 |
| Prefix with plus or name | 24 |
| Prefix with pod | 15 |
| Prefix with pod and plane | 25 |
| Prefix with pod or cycle | 24 |