thirty

UK/ˈθɜːti/ US/ˈθɝti/ common slang

adjective (1) noun (1)

adjective

being ten more than twenty

Synonyms

Similar

cardinal

noun

the cardinal number that is the product of ten and three

Synonyms

Origin

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”).

Related words

Word family

thirty-eight
thirty-eighth
thirty-fifth
thirty-first
thirty-five
thirty-four
thirty-fourth
thirty-nine
thirty-ninth
thirty-one
thirty-second
thirty-second note
thirty-seven
thirty-seventh
thirty-six
thirty-sixth

Broader terms

large integer

WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.

adjective
base	thirty
comparative	thirtier
superlative	thirtiest
noun
singular	thirty
plural	thirties
alternative	xxx, 30
alternative nonstandard obsolete	thretty, threety
alternative obsolete	thirtie