The enormous power of WikiWords is that they function as words. That allows you to frame very complex statements in a very concise language, and to say things whose subtext can be supplied and altered communally, and non-locally in time. This makes explicit a key attribute of UniversalMind.
See the WikiVocabulary for explanations of WikiWords having specific Wiki meanings. It explains the various nuances of meaning that apply within the Wiki. This vocabulary of WikiWords that are distinctively applicable to this Wiki is easily acquired by a newcomer.
What "word" can be used to talk about the parts (e.g. "Wiki" and "Word") of a WikiWord?
How about Wikeme for a component part of a WikiWord? - cf phoneme, morpheme and Stephen Pinker's listeme.
why not WikiAdjective and WikiNoun?
Actually WikiPhrase is part of WikiWay