What does "Ubuntu" mean
Ubuntu is an African word, which has been described as "too beautiful to translate into English". The essence of Ubuntu is that "a person is a person through other people". It describes humanity as "being-with-others" and prescribes what "being-with-others" should be all about. Ubuntu emphasises sharing, consensus, and togetherness. It's a perfect concept for Free Software and open source. Here's a great article that describes Ubuntu, which may help define it. Wikipedia also has a good definition.