thirty
English
| 300 | ||||
| ← 20 | ← 29 | 30 | 31 → | 40 → |
|---|---|---|---|---|
| 3 | ||||
| Cardinal: thirty Ordinal: thirtieth Adverbial: thirty times Multiplier: thirtyfold | ||||
Alternative forms
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.[1][2] Cognate with Scots therty, tretty (“thirty”), West Frisian tritich (“thirty”), Dutch dertig (“thirty”), German dreißig (“thirty”).
Pronunciation
- (Received Pronunciation) IPA(key): /ˈθɜːti/
Audio (UK) (file) - (General American) enPR: thŭr′tē, IPA(key): /ˈθɝti/, [ˈθɝɾi][1][2][3][4]
Audio (US) (file) - Rhymes: -ɜː(ɹ)ti
Numeral
thirty
- The cardinal number occurring after twenty-nine and before thirty-one, represented in Arabic numerals as 30.
- For quotations using this term, see Citations:thirty.
Synonyms
Derived terms
Translations
cardinal number
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See also
- (ordinal: the last of 30): thirtieth, trigesimal
- (adjectival form): tricenary
- (around 30): thirtyish
- (containing 30 of something): trigesimal
- (a 30-year-old person): tricenarian, thirtysomething
- (every 30 years): tricennial, trigintennial
- (30-sided figure): triacontahedron, triacontagon
- (30-sided): triacontahedral
References
- “thirty”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
- “thirty”, in Dictionary.com Unabridged, Dictionary.com, LLC, 1995–present.
- Macmillan (US) (compare Macmillan (UK)
- the Oxford Advanced Learner's Dictionary
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