There are 1,225 words that start with 'bi'.
Note: These 1,225 words that start with 'bi' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with bio, bil, bir, bit, bib, big, bin, bis, bic, bip, bim, bif, bid, bia, biz, biv, bie, bik, bij, biu, biq, biw, bih, biy.
3-letter words start with 'bi' (8)