The term 'WHAT'S ___?' can be answered by six different crossword solutions: DOING (5 letters), NEW (3 letters), This (4 letters), THAT (4 letters), MORE (4 letters), Updoc (5 letters), and Inaname (7 letters). DOING is a verb THAT means to perform an action or task. NEW is an adjective THAT describes something THAT has not been seen or experienced before. This and THAT are pronouns THAT refer to something previously mentioned. MORE is an adverb THAT indicates a greater amount of something. Updoc is a combination of the words 'UPDATE' and 'DOCUMENT' and refers to the process of making changes to a DOCUMENT. Finally, Inaname is a combination of the words 'in a name' and refers to the process of giving something a name.