I would like to see Wiktionary be a the source for disambiguation for words used in the Wikipedia. While this essentially means all words in which ever language a Wiki is written in, there are several instances where two words are near synonyms and the difference is how they tend towards one classification or another. Take for example "type" and "category", which I submit as the premier example. To denote a "type" means to refer to an instance of an amalgam of entities while "category" denotes a distinction of divisions among a particular type.
I hold that Wiktionary, being a purposed dictionary in which the words used in Wikipedia can have clarified definitions should differentiate itself from other dictionaries in terms of disambiguation.