a novel by George Orwell which is a satire (=a humorous criticism) on the Russian Revolution and Communist society. In the book, a group of animals take control of a farm so that they can establish a society where they are all equal. The pigs, however, soon become the leaders and say that they are more important, intelligent etc than everyone else, using the phrase "All animals are equal, but some animals are more equal than others
{i} novel by George Orwell written during W WII and published in 1945 which tells the story of a group of animals who drove out the humans from the farm on which they live and manged it themselves and thereafter the farm became a brutal tyranny on its own (novel became widely recognized only in the late 1950s)