There are 18 words that start with 'proj'.
| projet | project |
| projets | projects |
| projected | projector |
| projectile | projecting |
| projection | projective |
| projectors | projectable |
| projectiles | projections |
| projectional | projectively |
| projectionist | projectionists |
Note: These 18 words that start with 'proj' are found from the USA & Canada version of the tournament Scrabble word list.