thirtieth

== English == === Etymology === From earlier thirteth, from Middle English thrittithe, threttiþe, thrittyde, from Old English þrītigoþa; equivalent to thirty +‎ -eth. For the modern form, see the etymological notes at twentieth. === Pronunciation === (Received Pronunciation) IPA(key): /ˈθɜːti.əθ/ (General American) IPA(key): /ˈθɝti.əθ/ Hyphenation: thir‧ti‧eth === Adjective === thirtieth (not comparable) The ordinal form of the number thirty. ==== Synonyms ==== (abbreviations): 30th, 30th (obsolete): trigesimal ==== Derived terms ==== ==== Translations ==== === Noun === thirtieth (plural thirtieths) The person or thing in the thirtieth position. One of thirty equal parts of a whole. ==== Translations ====