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silo.

A vertical building, usually cylindrical, used for the production of silage.

4 characters2 syllables approx.English language

Meaning & usage

noun/ˈsaɪləʊ/Received-Pronunciation/ˈsaɪloʊ/Canada, General-American/ˈsɑe.ləʉ/Australia[ˈsɑe̯.lɐʉ̯]New-Zealand
  1. A vertical building, usually cylindrical, used for the production of silage.

  2. From the shape, a building used for the storage of grain.

  3. An underground bunker used to hold missiles which may be launched.

  4. An organizational unit that has poor interaction with other units, negatively affecting overall performance.

    derogatory · informal
  5. A structure in the information system that is poorly networked with other structures, with data exchange hampered.

    derogatory · informal
    Our networking is organized in silos, and employees lose time manually transferring data.
  6. A group of like-minded individuals who are not exposed to outside opinions or input.

    derogatory · slang
  7. In Microsoft Windows operating systems, a kernel object for isolating groups of threads.

Where this word comes from

From Spanish silo, of unclear origin. See Spanish silo for more.

verb/ˈsaɪləʊ/Received-Pronunciation/ˈsaɪloʊ/Canada, General-American/ˈsɑe.ləʉ/Australia[ˈsɑe̯.lɐʉ̯]New-Zealand
  1. To store in a silo.

    transitive
  2. To separate; to isolate.

    transitive
Where this word comes from

From Spanish silo, of unclear origin. See Spanish silo for more.

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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.