There are 26 6-letter words that start with 'cla'.
| clachs | clacks | clades | claims | clammy |
| clamor | clamps | clangs | clanks | clanky |
| claque | claret | claros | clasps | claspt |
| classy | clasts | clause | claver | claves |
| clavus | clawed | clawer | claxon | clayed |
| clayey | ||||
Note: These 26 6-letter words that start with 'cla' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with clas, clam, clan, clar, clad, clav, clay, clai, clau, clap, claw, clac, clat, claq, clab, clag, claf, clax.
4-letter words start with 'cla' (7)