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thirty

numeralnouncommon in dialogue

  • United Kingdom//ˈθɜːti//
  • United States//ˈθɝti//
  • United States/[ˈθɝɾi]/
  • Scotland//θɪɾte//

The cardinal number occurring after twenty-nine and before thirty-one, represented in Arabic numerals as 30.

numeral

  1. 1

    The cardinal number occurring after twenty-nine and before thirty-one, represented in Arabic numerals as 30.

    To conclude, here in tabular form is a summary of our ratings of espressos produced from thirty pod, capsule and disc blends.

Etymology

From Middle English thirty, metathetic alternant of thritty, from Old English þrītiġ, þrittiġ (“thirty”), from Proto-Germanic *þrīz tigiwiz (“thirty”, literally “three tens”), equivalent to three + -ty. Cognate with Scots therty, tretty (“thirty”), West Frisian tritich (“thirty”), Dutch dertig (“thirty”), German dreißig (“thirty”).

noun

  1. 1

    slangA rack of thirty beers.

  2. 2

    A commercial lasting 30 seconds.

    […] instead of thirties [thirty-second commercials], they buy sixties, which cost twice as much. They spend more on filming it than they need to; they buy a lot of ads that are garbage and don't really say anything, just to fill up the space.

Forms

plural
thirties
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).