| Prefix with night or day | 24 |
| Prefix with night and day | 25 |
| Prefix with naut or sol | 23 |
| Prefix with national or grain | 29 |
| Prefix with natal or plastic | 28 |
| Prefix with natal or nuptial | 28 |
| Prefix with natal or noir | 25 |
| Prefix with nasal or facial | 27 |
| Prefix with name or face | 24 |
| Prefix with name or charge | 26 |
| Prefix with musicology | 22 |
| 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 mission or press | 28 |
| Prefix with mingle or mix | 25 |
| Prefix with mime or graph | 25 |
| Prefix with millionaire | 23 |
| Prefix with metrics or bar | 26 |
| Prefix with metric or tonic | 27 |
| Prefix with meter or vise | 25 |
| Prefix with meter or tude | 25 |
| Prefix with meter or trooper | 28 |
| Prefix with meter or sphere | 27 |
| Prefix with meter or scope | 26 |
| Prefix with meter or phrase | 27 |
| Prefix with meter or motor | 26 |
| Prefix with meter or liter | 26 |
| Prefix with meter or gram | 25 |
| Prefix with meter or bel | 24 |
| Prefix with meter and scope | 27 |
| Prefix with meter and printer | 29 |
| Prefix with meter and liter | 27 |
| Prefix with mate or graph | 25 |
| Prefix with match or fire | 25 |
| Prefix with mart or skirt | 25 |
| Prefix with marry and mingle | 28 |
| Prefix with many fruit names | 28 |
| Prefix with management | 22 |
| Prefix with man or marine | 25 |
| Prefix with mall or store | 25 |
| Prefix with lung or marine | 26 |
| Prefix with loper or cede | 25 |
| Prefix with lope or lock | 24 |
| Prefix with logical or graph | 28 |
| Prefix with logic or graph | 26 |
| Prefix with log or smog | 23 |
| Prefix with log or lady | 23 |
| Prefix with log or center | 25 |
| Prefix with lock or skid | 24 |
| Prefix with lock or knock | 25 |
| Prefix with lock and hero | 25 |
| Prefix with lith and plastic | 28 |
| Prefix with link or lock | 24 |
| Prefix with linguistics | 23 |
| Prefix with line or mine | 24 |
| Prefix with line and section | 28 |
| Prefix with like or ability | 27 |
| Prefix with light or sound | 26 |
| Prefix with light or night | 26 |
| Prefix with life or wife | 24 |
| Prefix with life or size | 24 |
| Prefix with liberalism | 22 |
| Prefix with let or lease | 24 |
| Prefix with legal or sailing | 28 |
| Prefix with legal or normal | 27 |
| Prefix with legal or medic | 26 |
| Prefix with legal or chute | 26 |
| Prefix with legal and graph | 27 |
| Prefix with leave or weave | 26 |
| Prefix with lead or read | 24 |
| Prefix with lead or guide | 25 |
| Prefix with law or tourist | 26 |
| Prefix with lateral or state | 28 |
| Prefix with laryngology | 23 |
| Prefix with lace or lock | 24 |
| Prefix with lace or face | 24 |
| Prefix with lace and weave | 26 |
| Prefix with knock or nuke | 25 |
| Prefix with knock or lock | 25 |
| Prefix with judge or trial | 26 |
| Prefix with john or tasse | 25 |
| Prefix with john or god | 23 |
| Prefix with jam or spam | 23 |
| Prefix with iron or rib | 23 |
| Prefix with intestinal | 22 |
| Prefix with interference | 24 |
| Prefix with intellectual | 24 |
| Prefix with information | 23 |
| Prefix with inflammatory | 24 |
| Prefix with impressionist | 25 |
| Prefix with Impressionism | 25 |
| Prefix with identification | 26 |
| Prefix with hydrozoline | 23 |
| Prefix with horn or stock | 25 |
| Prefix with hero or matter | 26 |
| Prefix with head or hole | 24 |
| Prefix with hap or take | 23 |