ISO.
The International Organization for Standardization.
Meaning & usage
The International Organization for Standardization.
Where this word comes from
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. (file format): From the file extension, in reference to the ISO 9660 specification.
A disk image of an ISO 9660 file system (such as a CD or DVD).
I downloaded the ISO but got an error when trying to burn it to disc.
A measure of film sensitivity or brightness, derived from the ISO standard.
Where this word comes from
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. (file format): From the file extension, in reference to the ISO 9660 specification.
Initialism of Imperial Service Order.
Initialism of incentive stock option.
Initialism of instrument-shaped object.
Initialism of information security officer.
Initialism of in search of.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.