Standard Lemma guide

OSI

name · noun · 5 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.

No pronunciation record was provided for this word.

1

name

Meaning 1

Initialism of Open Systems Interconnection, an International Standard ISO/IEC 7894:1994(E) subtitled Basic Reference Model, containing a formal description of an idealized computer network architecture.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

Topics: computing, engineering, mathematics, natural-sciences, networking, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

Initialism of Other Supplementary Information, a message sent to an airline by an agent, in a standardised format, advising relevant information such as being a VIP, language difficulty, or passport information.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

Topics: aeronautics, aerospace, aviation, business, engineering, lifestyle, natural-sciences, physical-sciences, tourism, transport, travel-industry

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

name

Meaning 3

Initialism of Open Source Initiative.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

Qualifier: organisation

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences, software

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

name

Meaning 4

Initialism of Office of Special Investigations.

Definition source: English Wiktionary via Wiktextract

Usage: US, abbreviation, alt-of, initialism

Topics: government, politics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A tribe of Germania mentioned by Tacitus

Definition source: English Wiktionary via Wiktextract

Usage: plural, plural-only

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Osians

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

1 source translations are retained for this English entry.

  • French: Oses — Translations