Dutton Speedwords, sometimes called rapmotz IPA: [ˈrapɪŋmɔtəz], is an international auxiliary language as well a shorthand writing system for all the language of the world. It was invented by Reginald J. G. Dutton (1886–1970) in 1922. It was first published in 1935 under the title International Symbolic Script and a year later using the name Speedwords.