There are 15 words that start with 'seme'.
| seme | semen | semes |
| sememe | semens | sememes |
| sememic | semester | semeiotic |
| semesters | semestral | semeiology |
| semeiotics | semestrial | semeiologies |
Note: These 15 words that start with 'seme' are found from the USA & Canada version of the tournament Scrabble word list.