There are 18 words that start with 'combi'.
| combine | combing |
| combined | combiner |
| combines | combings |
| combineds | combiners |
| combining | combinable |
| combination | combinative |
| combinatory | combinations |
| combinational | combinatorial |
| combinatorics | combinatorially |
Note: These 18 words that start with 'combi' are found from the USA & Canada version of the tournament Scrabble word list.