There are 413 10-letter words that start with 'mi'.
Note: These 413 10-letter words that start with 'mi' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with mis, mic, mil, min, mid, mit, mir, mim, mig, mia, mix, mik, miz, mif, mio, mib, mie, mih, mij, miq, mip.
3-letter words start with 'mi' (9)