There are 704 words that start with 'anti'.
Note: These 704 words that start with 'anti' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with antic, antis, antip, antim, antir, antit, antin, antif, antia, antid, antib, antil, antih, antiq, antig, antie, antiv, antiw, antio, antik, antiu, antij.
5-letter words start with 'anti' (2)