There are 12 words that end with 'itness'.
| fitness | witness |
| licitness | tacitness |
| unfitness | adroitness |
| earwitness | eyewitness |
| straitness | explicitness |
| implicitness | maladroitness |
Note: These 12 words that end with 'itness' are found from the USA & Canada version of the tournament Scrabble word list.