The term 'One More Thing' is a phrase often used to introduce an additional point or comment at the end of a conversation. It is usually said after all other topics have been discussed AND can be used to add emphasis to the final point. The crossword solutions for this term are 'AND' (3 letters) AND 'ALSO' (4 letters). Both words are used to indicate that there is something else to be said, which is in line with the meaning of the phrase 'One More Thing'.