Standard Lemma guide

iso

name · noun · prep · 11 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈaɪ.səʊ/
  • Received-Pronunciation: /ˈaɪ.ɛsˌəʊ/
  • General-American: /ˈaɪ.soʊ/
  • General-American: /ˈaɪ.ɛsˌoʊ/
  • UK: Recorded audio is listed in the source snapshot.
  • UK: Recorded audio is listed in the source snapshot.
  • US: Recorded audio is listed in the source snapshot.
  • US: Recorded audio is listed in the source snapshot.
  • homophone: iso
  • Received-Pronunciation: /ˈaɪsəʊ/
  • General-American: /ˈaɪsoʊ/
  • US: Recorded audio is listed in the source snapshot.
  • homophone: ISO

1

name

Meaning 1

The International Organization for Standardization.

Definition source: English Wiktionary via Wiktextract

Qualifier: organisation

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Clipping of isolation.

Quarantine measures in order to mitigate the spread of communicable diseases, such as Covid-19.

Definition source: English Wiktionary via Wiktextract

Usage: colloquial, countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Clipping of isolation.

An isolation play in basketball or American football.

Definition source: English Wiktionary via Wiktextract

Usage: colloquial, countable, uncountable

Topics: American-football, ball-games, basketball, football, games, hobbies, lifestyle, sports

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

Clipping of isomorphism.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, clipping, countable, uncountable

Topics: category-theory, computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A disk image of an ISO 9660 file system (such as a CD or DVD).

Definition source: English Wiktionary via Wiktextract

Qualifier: file format

Examples

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

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

A measure of film sensitivity or brightness, derived from the ISO standard.

Definition source: English Wiktionary via Wiktextract

Topics: arts, hobbies, lifestyle, photography

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

Initialism of Imperial Service Order.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

Initialism of incentive stock option.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

Topics: business, finance

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

Initialism of instrument-shaped object.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, derogatory, initialism

Topics: entertainment, lifestyle, music

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

noun

Meaning 10

Initialism of information security officer.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

prep

Meaning 11

Initialism of in search of.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

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. (file format): From the file extension, in reference to the ISO 9660 specification.