trydydd ar hugain

== Welsh == === Alternative forms === 23ain (abbreviation) === Etymology === From trydydd (“third”) +‎ ar (“on”) +‎ ugain (“twenty”). === Pronunciation === (North Wales) IPA(key): /ˌtrədɨ̞ð ar ˈhɪɡai̯n/ (South Wales, standard, colloquial) IPA(key): /ˌtrədɪð ar ˈhiːɡai̯n/, /ˌtrədɪð ar ˈhɪɡai̯n/ (South Wales, colloquial) IPA(key): /ˌtrɪdɪð ar ˈhiːɡɛn/, /ˌtrɪdɪð ar ˈhɪɡai̯n/ === Adjective === trydydd ar hugain (feminine singular trydedd ar hugain, plural trydydd ar hugain, not comparable) (ordinal number) twenty-third === Mutation ===