Thirty

//ˈθɜːti// noun, num, slang

noun, num, slang ·Moderate ·High school level

Definitions

Noun
  1. 1
    A rack of thirty beers. slang
  2. 2
    the cardinal number that is the product of ten and three wordnet
  3. 3
    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."

Adjective
  1. 1
    being ten more than twenty wordnet
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."

Example

More examples

"You will be delayed for only thirty minutes at worst."

Etymology

From Middle English thirty, metathetic alternant of Middle English thriti, þrittiȝ, from Old English þrītiġ (“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”).

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.