Word.ws English Dictionary

OSI

OSI is the initialism of Open Systems Interconnection.

OSI is the initialism of Other Supplementary Information.

OSI is the initialism of Open Source Initiative.

OSI is the initialism of Office of Special Investigations.

Noun capitalized: Osi

Osi pl (plural only)

  1. (plural, plural-only) A tribe of Germania mentioned by Tacitus
    Synonyms:
    Osians

Synonyms of OSI

  • Osians

Words formed from OSI

Phrases with OSI

Questions about OSI

What does OSI mean?
OSI means a tribe of Germania mentioned by Tacitus.
What is OSI the initialism of?
OSI is the initialism of Open Systems Interconnection.
What part of speech is OSI?
OSI is a noun.

Words near OSI in the dictionary

  1. Oshkosh
  2. Oshnavieh
  3. Osho
  4. Oshogbo
  5. oshona
  6. OSI
  7. OSI layer
  8. OSI layer 8
  9. OSI layers
  10. OSI model
  11. Osiandrian

Source and license

Adapted from Wiktionary: OSI (page history and authors); Osi (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “OSI.” Word.ws, https://word.ws/osi. Based on Wiktionary, CC BY-SA 4.0.