There are 13 12-letter words that start with 'cro'.
| crocidolites | crocodilians | croquignoles | 
| crossability | crossbanding | crossbarring | 
| crossbearers | crosscurrent | crosscutting | 
| crosshatched | crosshatches | crosspatches | 
| crossruffing | ||
Note: These 13 12-letter words that start with 'cro' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with cros, crow, croc, croo, crou, crot, crop, croa, croq, cron, croz, crof, croi, croj, crom, cror.
4-letter words start with 'cro' (3)