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.