| Prefix with realism | 19 |
| Prefix with reading | 19 |
| Prefix with raptor | 18 |
| Prefix with Raphaelite | 22 |
| Prefix with rail or tone | 24 |
| Prefix with rail or theist | 26 |
| Prefix with rail and gram | 25 |
| Prefix with quote | 17 |
| Prefix with quark or shark | 26 |
| Prefix with puncture | 20 |
| Prefix with prove or solve | 26 |
| Prefix with proton or ballistic | 31 |
| Prefix with protein | 19 |
| Prefix with propyl | 18 |
| Prefix with prompter | 20 |
| Prefix with proliferation | 25 |
| Prefix with profit | 18 |
| Prefix with professional | 24 |
| Prefix with print or trust | 26 |
| Prefix with pressured | 21 |
| Prefix with pressure or puncture | 32 |
| Prefix with pressure or point | 29 |
| Prefix with pressure | 20 |
| Prefix with present or potent | 29 |
| Prefix with present or bus | 26 |
| Prefix with present | 19 |
| Prefix with precious or conscious | 33 |
| Prefix with precious or annual | 30 |
| Prefix with practice or function | 32 |
| Prefix with practice | 20 |
| Prefix with potent or present | 29 |
| Prefix with potent | 18 |
| Prefix with postale | 19 |
| Prefix with posit | 17 |
| Prefix with pose or view | 24 |
| Prefix with pose | 16 |
| Prefix with port or play | 24 |
| Prefix with port or plant | 25 |
| Prefix with port or pad | 23 |
| Prefix with port | 16 |
| Prefix with pop | 15 |
| Prefix with politics or physics | 31 |
| Prefix with politics | 20 |
| Prefix with political or logical | 32 |
| Prefix with political | 21 |
| Prefix with polis | 17 |
| Prefix with polar or cameral | 28 |
| Prefix with polar | 17 |
| Prefix with poise or nox | 24 |
| Prefix with poise | 17 |
| Prefix with pod or tope | 23 |
| Prefix with pod or stere | 24 |
| Prefix with pod or motor | 24 |
| Prefix with pod or cycle | 24 |
| Prefix with pod and plane | 25 |
| Prefix with pod | 15 |
| Prefix with plus or name | 24 |
| Prefix with plunk or plop | 25 |
| Prefix with plunk or flop | 25 |
| Prefix with plunk | 17 |
| Prefix with plop | 16 |
| Prefix with play or step | 24 |
| Prefix with play or scope | 25 |
| Prefix with play or cast | 24 |
| Prefix with play or band | 24 |
| Prefix with play or act | 23 |
| Prefix with platonic | 20 |
| Prefix with plasty | 18 |
| Prefix with plastic | 19 |
| Prefix with plasm or type | 25 |
| Prefix with plasm or morphic | 28 |
| Prefix with plasm or derm | 25 |
| Prefix with plasm or classic | 28 |
| Prefix with plasm and morph | 27 |
| Prefix with plasm | 17 |
| Prefix with plano | 17 |
| Prefix with plankton | 20 |
| Prefix with plane, to a Brit | 28 |
| Prefix with plane or tone | 25 |
| Prefix with plane or space | 26 |
| Prefix with plane or sol | 24 |
| Prefix with plane or gram | 25 |
| Prefix with plane or dynamics | 29 |
| Prefix with plane | 17 |
| Prefix with planar or polar | 27 |
| Prefix with place or print | 26 |
| Prefix with place or grace | 26 |
| Prefix with pilot or biography | 30 |
| Prefix with pilot | 17 |
| Prefix with pictures | 20 |
| Prefix with phyte | 17 |
| Prefix with physiology | 22 |
| Prefix with physics or thesis | 29 |
| Prefix with physics and chemistry | 33 |
| Prefix with physics | 19 |
| Prefix with physicist | 21 |
| Prefix with physical | 20 |
| Prefix with phrase | 18 |
| Prefix with photo or type | 25 |
| Prefix with photo or phone | 26 |