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OS-21 Meaning

The OS-21 meaning is "Observing System 21St Century". The OS-21 abbreviation has 1 different full form.

OS-21 Full Forms

  1. Observing System 21St Century Military

Frequently Asked Questions (FAQ)

  1. What does OS-21 stand for?

    OS-21 stands for Observing System 21St Century.

  2. What is the shortened form of Observing System 21St Century?

    The short form of "Observing System 21St Century" is OS-21.

Citation

OS-21. Acronym24.com. (2019, December 24). Retrieved December 22, 2024 from https://acronym24.com/os-21-meaning/

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