There are 14 words that start with 'plani'.
| planing | planish |
| planished | planisher |
| planishes | planimeter |
| planishers | planishing |
| planimeters | planimetric |
| planisphere | planispheres |
| planispheric | planimetrically |
Note: These 14 words that start with 'plani' are found from the USA & Canada version of the tournament Scrabble word list.