Since the lexemes and phrasemes of a natural language number in the hundreds of thousands, a complete ECD, in paper form, would occupy the space of a large encyclopaedia.

The Great Rock Encyclopaedia, the first two parts of which have been published (part 2 in 2007), is a unique work, the single largest and most comprehensive encyclopaedia of rock music ever published anywhere in the world.

The site, which anyone can contribute to or edit, is founded on the principle of group collaboration - which has made it the largest encyclopaedia in the world.

Wikipedia, the online encyclopaedia which anyone can contribute to or edit, is the largest encyclopaedia in the world.

The encyclopedia is sometimes considered the first modern one in the German language; at the time, it was the largest printed encyclopaedia in the western hemisphere.

The message replacing the normal Wikipedia front page on the internet says: "For over a decade, we have spent millions of hours building the largest encyclopaedia in human history.