A Descriptive Vocabulary of the Language in Common Use Amongst the Aborigines of Western Australia is a book by George Fletcher Moore. First published in 1842, it represents one of the earliest attempts to record the languages used by the Aboriginal peoples of Western Australia. The book is a compilation by Moore based on the works of Robert Lyon, Francis Armstrong, Charles Symmons, the Bussell family and George Grey, as well as his own observations. It was published in 1842 at the expense of Moore and Governor of Western Australia John Hutt. In 1884 it was republished as part of Moore's Diary of Ten Years Eventful Life of an Early Settler in Western Australia and also A Descriptive Vocabulary of the Language of the Aborigines.