thirty

/ˈθɝti/
numbernoun

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

NWL Collins ENABLE

Number 1 meaning

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

Noun 1 meaning

  1. A commercial lasting 30 seconds.

Definitions: Wiktionary (CC BY-SA) via Kaikki/Wiktextract

Where it comes from

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.

Similar and opposite words

Similar
triacontad

THIRTY at a glance

THIRTY has 6 letters and scores 12 points in Scrabble (T 1 + H 4 + I 1 + R 1 + T 1 + Y 4) and 10 in Words With Friends, before board bonuses. It ranks #3,719 by how often it appears in everyday English. It is valid in ENABLE, NWL2023, Collins/SOWPODS.

Rhymes with thirty

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