There are 16 10-letter words that start with 'plan'.
| planarians | planations | planchette |
| planeloads | planesides | planetaria |
| planetlike | planetoids | planetwide |
| plangently | planimeter | planishers |
| planishing | planktonic | planlessly |
| plantation | ||
Note: These 16 10-letter words that start with 'plan' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with plane, plant, plani, plana, plank, planc, plann, plano, planu, plang, planl, planf, plans.
5-letter words start with 'plan' (4)