Added 9 October 2026 world-class /wɜː(ɹ)ldˈklæs/ adjective Categories: Describing WordsObscure Words adjective ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about world-class at Wordnik → Where our words come from → Of a standard that ranks among the best in the world. Extraordinary in degree. A world-class idiot Related Words: top-flightgradehigh-qualitysuperiortop-qualityexcellencetop-notchpremiumtop-rankingsuperbexcellentoutstanding Back to today's word