There are 16 words that start with 'chum'.
| chum | chump | chums |
| chummy | chumps | chummed |
| chumped | chummier | chummily |
| chumming | chumping | chumship |
| chummiest | chumships | chumminess |
| chumminesses | ||
Note: These 16 words that start with 'chum' are found from the USA & Canada version of the tournament Scrabble word list.