Arabic Islamic phrase "in sha allah" (= if Allah wills it). Inside Althusserian Marxism, an 'ideological state apparatus'. Infectious salmon anemia, a viral disease of salmon. Individual Savings Account (in the UK) Industry Standard Architecture (a computer bus standard for IBM compatible PCs) Instruction Set Architecture Instrumentation, Systems, and Automation Society (formerly Instrument Society of Usthe, a professional organization for instrument engineers) Intelligent Speed Adaptation or Intelligent Speed Advice Intelligent Steering Agent Internal Security Act (implemented in Malaysia and Singapore) International Seabed Authority International Searching Authority (in patent law) International Society of Arboriculture (non-profit organization) International Sociological Association International Space Agency International Standard Atmosphere International Symbol of Accessibility Internet Security and Acceleration Server Irish Sailing Association (National governing body for sailing within Ireland) Italian Space Agency The Polish publisher of role-playing games

Is-the stands for

An is-a hierarchy in philosophy or computer science

de:Isa es:ISA