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RO

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RO¹

noun ROs

  1. abbreviation, countable, initialism, uncountable Initialism of reverse osmosis
  2. abbreviation, countable, initialism, uncountable Initialism of restraining order
  3. abbreviation, countable, initialism, uncountable Initialism of receiving office

proper noun

  1. abbreviation Abbreviation of Rondônia: a state of Brazil.

Ro²

proper noun

  1. uncountable An a priori international auxiliary language created by Edward Powell Foster beginning in 1904.

Thesaurus

Closest in meaning: org, ros, choi, mance, shei, immutable, unmodifiable, write-protected, locked, secure, protected, static, fixed, frozen, constant, sealed

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MLA

"RO." Wiktionary, via Micwyn, micwyn.com/word/ro. Accessed 6 Nov. 2026.

APA

RO. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/ro

Chicago

"RO." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/ro.

BibTeX
@misc{ro_2026,
  title = {RO},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/ro},
  urldate = {2026-11-06}
}