- prefix (written as iso-)equal
- (written as ISO)Acronym of the International Organization for Standardization, chosen to be used in all languages even though it may not exactly match the organization's name in any.
- acronym forInternational Organization for Standardization (written as ISO)
- noun an ‘isolated’ television camera, the output from which is recorded separately to those of other cameras on the shoot
- acronym forInfrared Space Observatory (written as ISO)