ISO

Officially from Greek ίσος (ísos, “equal”).^[1] However, a participant in the initial meetings disputes this etymology, claiming that the link to ίσος was decided on after the name ISO was set.^[2]

• (Received Pronunciation) IPA^(key): /ˈaɪ.səʊ/, /ˈaɪ.ɛsˌəʊ/
• (General American) IPA^(key): /ˈaɪ.soʊ/, /ˈaɪ.ɛsˌoʊ/

• Audio (UK):

  (file)

  (official pronunciation as one word)

• Audio (UK):

  (file)

  (individual letters spoken)

• Audio (US):

  (file)

  (official pronunciation as one word)

• Audio (US):

  (file)

  (individual letters spoken)
• Homophone: iso

ISO

1. (organisation) The International Organization for Standardization.

ISO (plural ISOs)

2. (file format) A disk image of an ISO 9660 file system (such as a CD or DVD); also used as the file extension for such a file.

   I downloaded the ISO but got an error when trying to burn it to disc.

3. (photography) A measure of film sensitivity or brightness, derived from the ISO standard.

ISO (plural ISOs)

1. Initialism of Imperial Service Order.
2. (finance) Initialism of incentive stock option.
3. (music, derogatory) Abbreviation of instrument-shaped object. Used to refer to a musical instrument that is of very low quality.

ISO

1. (in personal ads) Initialism of in search of.
   • 1992 November 23, Joseph E. Beason, “Re: gayfolk and cats”, in soc.motss‎ (Usenet):

     SO's affection for cats is important, but not nearly as important as not being allergic! It's really irritating to date a person who stops breathing whenever he's in your apartment. "GWM, 26, ISO G/BiM, must be kind to animals and have no allergies to pets..."

• I/Os, ios, OSI, SIO, soi, OIs, OIS, SOI, iOS, IOs, Ios

• IPA^(key):

ISO

1. ISO (International Organization for Standardization)

ISO f

1. ISO (International Organization for Standardization)

• “ISO”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10