See also: oes, OES., -ões, ös, öš, and -ös English Alternative forms (Old East Slavic): OES. Proper noun OES (linguistics) Initialism of Old East Slavic. Initialism of Order of the Eastern Star. Anagrams Eos, Seo, soe, Soe, -ose, SOE, OSE, ESO, SEO, E&OsWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads