OSA

O1S1A1

Initialism of obstructive sleep apnea.

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Meanings

nounOSA (countable and uncountable, plural OSAs)

plural OSAs

  1. abbreviationcountableinitialismuncountablemedicineInitialism of obstructive sleep apnea.
  2. abbreviationcountableinitialismuncountablemedicineInitialism of osteosarcoma.
  3. abbreviationcountableinitialismuncountablelogisticsbusinessInitialism of on-shelf availability.
proper noun
  1. abbreviationinitialismInitialism of Ontario Soccer Association.
  2. abbreviationinitialismInitialism of Ontario Society of Artists.
  3. abbreviationinitialismInitialism of Open Solutions Alliance.
  4. abbreviationinitialismInitialism of Oregon Student Association.
  5. abbreviationinitialismhuman sciencesInitialism of Old South Arabian.
  6. UKabbreviationinitialismgovernmentInitialism of Online Safety Act.
adjectiveOSA (not comparable)
  1. abbreviationinitialismnot comparablelifestyleInitialism of opposite-sex attracted.

Origin

Abbreviation.

Full word history & related roots →

Translations

French AOS
  • AOSobstructive sleep apnea
Polish OSA
  • OSAobstructive sleep apnea
Spanish AOS
  • AOSobstructive sleep apnea

Rhymes & wordplay

Anagrams

SaoSOAOASASO
Cite this entry
APA

OSA. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/OSA

MLA

“OSA.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/OSA. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “OSA,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/OSA.

Source: OSA on Wiktionary, CC BY-SA 4.0.