Wikipedia, Wikitionary, Wikiquote, Wikibooks (including Wikijunior), Wikisource, Wikimedia Commons, Wikispecies, Wikinews, Wikiversity,MetaWiki, wikiHow, WikiAnswers, Uncyclopedia, Encyclopedia Dramatica, MarvelWiki, Bulbapedia, GuildWiki, Left4Dead Wiki, SleepWiki, YugiohWiki, to name a few of the most popular wikis.
WikiAnswers and Wikipedia are two different companies. However, Wikipedia does have an agreement with Answers.com that allows them to use their content in the ReferenceAnswers area.
Among other things, "the underlying reality or substance of something" (from Wiktionary). You can find additional meanings at Wiktionary.
Neither is better. Wikipedia is an on-line encyclopedia. You type something into the dialogue box, and that's used to search the whole site for information on what you typed. WikiAnswers, on the other hand, is a question and answer site. You post a question (as you did here) and wait for someone to reply with a relevant answer to your question.
WikiAnswers does NOT know everything. People from all around the world answer questions on WikiAnswers. We can only answer questions that we know the answers too. If nobody could answer a question, then that question would stay un-answered. Because WikiAnswers is a combined effort of thousands of users. Everyone knows something about something! Put them all together and you are very likely to find a person who knows the answer to what you want to know, and they are willing to share it with you!
Several meanings, related to the idea of "holding something in custody". Check the English Wiktionary for more details.
Wiktionary: "Prototypical; preceding the proper beginning of something". That sounds about right, for a protostar.
Yes! One reason we have WikiAnswers is to ask questions!
answerbarrel uses the most question and answer web sights such as wikianswers and yahoo answers even automatically gives you wikipedia definitions if you just type in the name of something.
well there isn't because they can't have everything in different categories so that's why you press reference topic when you type something in the search bar.
The word is sacrilege. From Wiktionary: "desecration, profanation, misuse or violation of something regarded as sacred". In other words, anything you do against something that somebody consideres sacred. Obviously, opinions over what is a sacrilege will vary.
No
The purpose of the site wikianswers is to answer your basic knowledge questions like "How do you find the volume of something?"