Iso

//ˈaɪsəʊ// name, noun, prep, slang

name, noun, prep, slang ·Moderate ·High school level

Definitions

Noun
  1. 1
    Clipping of isolation.; Quarantine measures in order to mitigate the spread of communicable diseases, such as Covid-19. colloquial, countable, uncountable
  2. 2
    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. 3
    Initialism of Imperial Service Order. abbreviation, alt-of, initialism
  4. 4
    Clipping of isolation.; An isolation play in basketball or American football. colloquial, countable, uncountable

    "“I can remember lining up against them and saying, ‘This is the 15th iso that you’re going to get.’ ”"

  5. 5
    A measure of film sensitivity or brightness, derived from the ISO standard.
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  1. 6
    Initialism of incentive stock option. abbreviation, alt-of, initialism
  2. 7
    Clipping of isomorphism. abbreviation, alt-of, clipping, countable, uncountable
  3. 8
    Initialism of instrument-shaped object, used to refer to a musical instrument that is of very low quality. abbreviation, alt-of, derogatory, initialism
  4. 9
    Initialism of information security officer. abbreviation, alt-of, initialism
Preposition
  1. 1
    Initialism of in search of. abbreviation, alt-of, initialism

    "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...""

Proper Noun
  1. 1
    The International Organization for Standardization.

    "Sutton SignWriting is the universal and complete solution for written sign language, ISO 15924 script code "Sgnw"."

Synonyms

All synonyms
equi-homo-isomorphismsecsym-syn-

Example

More examples

"Berber still doesn't have an ISO-639-3 code."

Etymology

Officially from Greek ίσος (ísos, “equal”). 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.

Related phrases

Linux ISOself-isoamerican footballfile extensionfile system

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.