20260923-0 International Sign 2010-01-01 2026-02-23 1950-05-09 ILS 2012-06-27 2011-10-06 International Gesture International Sign Pidgin International Sign International Sign (IS) is a pidgin sign language which is used in a variety of different contexts, particularly as an international auxiliary language at meetings such as the World Federation of the Deaf (WFD) congress, in some European Union settings, at some UN conferences, as well as a number of academic conferences, at events such as the Deaflympics, the Miss & Mister Deaf World, and Eurovision, and informally when travelling and socialising. ils ils ILS false ILS 1950-05-09 ILS