ost

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ost¹

noun osts

  1. obsolete Obsolete form of oast

OST²

noun OSTs

  1. abbreviation, initialism Initialism of original soundtrack I really like the OST of that game.

proper noun

  1. abbreviation, initialism Initialism of Outer Space Treaty: a treaty that represents the basic legal framework of international space law, signed in 1967. The most important source of space law is the 1967 Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies (OST).¹⁶ […] The OST is a product of the Cold War era when the United States and the Soviet Union—the on
  2. abbreviation, initialism Initialism of Open Skies Treaty
  3. UK, abbreviation, historical, initialism Initialism of Office of Science and Technology

Thesaurus

Closest in meaning: afrika, europa, east, majority, cheese, tmb, treaty, sfo, purchase, osi, tso, berlin, nord, dok, osis, tsos

Translations

Every language

noun original soundtrack

EspañolBSO
日本語OST (ōesutī)
中文原聲帶 /原声带 yuánshēngdài
FrançaisBO
РусскийОСТ OST

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Cite this
MLA

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

APA

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

Chicago

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

BibTeX
@misc{ost_2026,
  title = {ost},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/ost},
  urldate = {2026-11-06}
}