There are 11 words that start with 'cartoo'.
| cartoon | cartoons | cartoony |
| cartooned | cartooning | cartoonish |
| cartoonist | cartoonings | cartoonists |
| cartoonlike | cartoonishly | |
Note: These 11 words that start with 'cartoo' are found from the USA & Canada version of the tournament Scrabble word list.