thirtieth

thir·ti·eth
T1H4I1R1T1I1E1T1H4
UK/ˈθɜːti.əθ/US/ˈθɝti.əθ/

adjective

The ordinal form of the number thirty.

UncommonScrabble 15

Meanings

adjectivethirtieth (not comparable)
  1. not comparableThe ordinal form of the number thirty.

    Synonyms: 30th, trigesimal

nounthirtieth (plural thirtieths)

plural thirtieths

  1. The person or thing in the thirtieth position.
  2. One of thirty equal parts of a whole.

Synonyms & antonyms

adjectiveThe ordinal form of the number thirty.

More synonyms by meaning

adjectivecoming next after the twenty-ninth in position

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Old Englishþrītigoþa
  2. Middle Englishthrittithe
  3. Englishthirtieth

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.

Full word history & related roots →

Translations

Afrikaans dertigste
  • dertigstethe ordinal form of the number thirty — see also 30th
Bengali ত্রিংশত্তম
  • ত্রিংশত্তম (triṅśottom)the ordinal form of the number thirty — see also 30th
Bulgarian тридесети
  • тридесети (trideseti)the ordinal form of the number thirty — see also 30th
Catalan trentè
  • trentèthe ordinal form of the number thirty — see also 30th
Chinese Mandarin 第三十
  • 第三十 (dì sānshí)the ordinal form of the number thirty — see also 30th
Czech třicátý, třicetina
  • třicátýthe ordinal form of the number thirty — see also 30th
  • třicetinaone of thirty equal parts of a whole
Danish tredivte
  • tredivtethe ordinal form of the number thirty — see also 30th
Dutch dertigste, dertigste
  • dertigstethe ordinal form of the number thirty — see also 30th
  • dertigstethe person or thing in the thirtieth position
  • dertigsteone of thirty equal parts of a whole
Esperanto trideka
  • tridekathe ordinal form of the number thirty — see also 30th
Estonian kolmekümnes
  • kolmekümnesthe ordinal form of the number thirty — see also 30th
Finnish kolmaskymmenes, kolmaskymmenes
  • kolmaskymmenesthe ordinal form of the number thirty — see also 30th
  • kolmaskymmenesthe person or thing in the thirtieth position
  • kolmaskymmenesosaone of thirty equal parts of a whole
French trentième, trentième
  • trentièmethe ordinal form of the number thirty — see also 30th
  • trentièmethe person or thing in the thirtieth position
  • trentièmeone of thirty equal parts of a whole
German dreißigste, dreißigste
  • dreißigstethe ordinal form of the number thirty — see also 30th
  • dreißigstethe person or thing in the thirtieth position
  • dreißigsteone of thirty equal parts of a whole
Greek τριακοστός
  • τριακοστός (triakostós)the ordinal form of the number thirty — see also 30th
Hindi तीसवाँ, तीसवाँ
  • तीसवाँ (tīsvā̃)the ordinal form of the number thirty — see also 30th
  • तीसवाँ (tīsvā̃)the person or thing in the thirtieth position
  • तीसवाँ (tīsvā̃)one of thirty equal parts of a whole
Hungarian harmincadik, harmincadik
  • harmincadikthe ordinal form of the number thirty — see also 30th
  • harmincadikthe person or thing in the thirtieth position
  • harmincadone of thirty equal parts of a whole
Icelandic þrítugasta
  • þrítugastathe ordinal form of the number thirty — see also 30th
Indonesian ketigapuluh
  • ketigapuluhthe ordinal form of the number thirty — see also 30th
Irish tríochadú, tríochadú
  • tríochadúthe ordinal form of the number thirty — see also 30th
  • tríochadúone of thirty equal parts of a whole
Italian trentesimo, trentesimo
  • trentesimothe ordinal form of the number thirty — see also 30th
  • trentesimothe person or thing in the thirtieth position
  • trentesimathe person or thing in the thirtieth position
  • trentesimoone of thirty equal parts of a whole
Japanese 第三十
  • 第三十 (dai-sanjū)the ordinal form of the number thirty — see also 30th
Korean 서른째
  • 서른째 (seoreunjjae)the ordinal form of the number thirty — see also 30th
Latin trīcēsimus
  • trīcēsimusthe ordinal form of the number thirty — see also 30th
Latvian trīsdesmitais
  • trīsdesmitaisthe ordinal form of the number thirty — see also 30th
Lithuanian trisdešimtas
  • trisdešimtasthe ordinal form of the number thirty — see also 30th
Malay ketiga puluh
  • ketiga puluhthe ordinal form of the number thirty — see also 30th
Norwegian Bokmål trettiende
  • trettiendethe ordinal form of the number thirty — see also 30th
Persian سیم
  • سیم (siyom)the ordinal form of the number thirty — see also 30th
Polish trzydziesty
  • trzydziestythe ordinal form of the number thirty — see also 30th
Portuguese trigésimo, trigésimo
  • trigésimothe ordinal form of the number thirty — see also 30th
  • trigésimothe person or thing in the thirtieth position
  • trigésimoone of thirty equal parts of a whole
  • trinta avosone of thirty equal parts of a whole
  • trigésima parteone of thirty equal parts of a whole
Romanian al treizecilea
  • al treizecileathe ordinal form of the number thirty — see also 30th
Russian тридца́тый, тридцатая
  • тридца́тый (tridcátyj)the ordinal form of the number thirty — see also 30th
  • тридцатаяone of thirty equal parts of a whole
Slovak tridsiaty
  • tridsiatythe ordinal form of the number thirty — see also 30th
Spanish trigésimo, trigésimo
  • trigésimothe ordinal form of the number thirty — see also 30th
  • trigésimothe person or thing in the thirtieth position
  • treintavoone of thirty equal parts of a whole
Swahili thelathini
  • thelathinithe ordinal form of the number thirty — see also 30th
Swedish trettionde
  • trettiondethe ordinal form of the number thirty — see also 30th
Tagalog ikatatlumpu
  • ikatatlumputhe ordinal form of the number thirty — see also 30th
Turkish otuzuncu, otuzuncu
  • otuzuncuthe ordinal form of the number thirty — see also 30th
  • otuzuncuthe person or thing in the thirtieth position
Ukrainian тридця́тий
  • тридця́тий (trydcjátyj)the ordinal form of the number thirty — see also 30th
Vietnamese thứ ba mươi
  • thứ ba mươithe ordinal form of the number thirty — see also 30th
Yiddish דרײַסיקסט, דרײַסיקסטל
  • דרײַסיקסט (draysikst)the ordinal form of the number thirty — see also 30th
  • דרײַסיקסטל (draysikstl)one of thirty equal parts of a whole
Cite this entry
APA

thirtieth. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/thirtieth

MLA

“thirtieth.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thirtieth. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “thirtieth,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/thirtieth.

Source: thirtieth on Wiktionary, CC BY-SA 4.0.