When you talk about the thirties, you are referring to numbers between 30 and 39. For example, if you are in your thirties, you are aged between 30 and 39. If the temperature is in the thirties, the temperature is between 30 and 39 degrees.
Mozart clearly enjoyed good health throughout his twenties and early thirties.
3. plural noun
The thirties is the decade between 1930 and 1939.
She became quite a notable director in the thirties and forties.
thirty in British English
(ˈθɜːtɪ)
nounWord forms: plural-ties
1.
the cardinal number that is the product of ten and three
See also number (sense 1)
2.
a numeral, 30, XXX, etc, representing this number
3. (plural)
the numbers 30–39, esp the 30th to the 39th year of a person's life or of a century
4.
the amount or quantity that is three times as big as ten
5.
something representing, represented by, or consisting of 30 units
determiner
6.
a.
amounting to thirty
thirty trees
b.
(as pronoun)
thirty are broken
Word origin
Old English thrītig; see three, -ty1
thirty in American English
(ˈθɜrti)
adjective
1.
three times ten
nounWord forms: pluralˈthirties
2.
the cardinal number between twenty-nine and thirty-one; 30; XXX
3. US
this number used to signify the end of a dispatch, story, etc., as for a newspaper
Idioms:
the thirties
Word origin
LME thirti, metathetic for thritti < OE thritig < thri, three + -tig, -ty2; (sense 3) prob. orig. telegraphers' code for a concluding sentence
Examples of 'thirty' in a sentence
thirty
Thirty years in medicine has given me a healthy regard for most diseases.
Times, Sunday Times (2016)
Thirty thousand of them will die and the luckier majority who pull through often take six weeks or more to make a full recovery.
Times, Sunday Times (2016)
When I was in my early thirties.
Times, Sunday Times (2016)
QI'm in my early thirties and have been with my boyfriend for a couple of years.
Times, Sunday Times (2016)
Thirty years ago, Hollywood was full of them.
The Sun (2016)
Thirty years ago a discovery of bones in the area helped us to understand that the last Ice Age did not wipe out the mammoth.
Times, Sunday Times (2016)
The optimism of twenty or thirty years ago is still with us today.
de Jong, Eveline Alternative Health Care for Children (1989)
This is after publishing three works of fiction before the age of thirty.
The Times Literary Supplement (2011)
They have thirty or forty hairs in their beards.
Eric Newby A BOOK OF LANDS AND PEOPLES (2003)
Thirty one per cent say they are walking or cycling more.
The Sun (2012)
We are both in our early thirties and have always wanted a family.
The Sun (2014)
This time the bouncing lasted for little more than thirty seconds.
Jan Fennell, Foreword by Monty Roberts THE DOG LISTENER: Learning the Language of your Best Friend (2002)
Six were under thirty years of age.
Trickett, Shirley Coming Off Tranquillizers and Sleeping Pills (1991)
Thirty thousand subjects dined daily at his table.
Christianity Today (2000)
Thirty days without pampering would do him good.
The Sun (2015)
In the candlelight she looks as if she is in her early thirties.
Times, Sunday Times (2010)
Thirty seconds of your time could make a difference to what will remain of their lives.
Times, Sunday Times (2010)
It is only in the last thirty years that swimming pools have become a par.
Page, Russell The Education of a Gardener (1994)
Thirty thousand pounds is a massive debt to have by your early twenties.
The Sun (2014)
He had reached the age of thirty and he was lonely.
Aidan Hartley THE ZANZIBAR CHEST: A Memoir of Love and War (2003)
In her early thirties her hair suddenly became worse.
Steel, Elizabeth Coping With Sudden Hair Loss (1988)
Thirty seconds of this is hard work.
Times, Sunday Times (2014)
He looked almost as she remembered him from thirty years before.
Tepper, Sheri S. A Plague of Angels (1993)
Thirty minutes to one hour is usually the minimum time needed in primary school and two hours in senior school.
Times, Sunday Times (2013)
Leave for between thirty minutes and one hour depending on your natural hair colour and the shade of brown you require.
Guyton, Anita The Natural Beauty Book - cruelty-free cosmetics to make at home (1991)
They averaged perhaps thirty a day.
Paul Preston The Spanish Civil War: Reaction, Revolution and Revenge
Life on Mars had something like thirty drafts.
Times, Sunday Times (2009)
The firing was continuous -- thirty or forty rounds per second.
Philip Marsden The Barefoot Emperor: An Ethiopian Tragedy (2007)
In other languages
thirty
British English: thirty /ˈθɜːtɪ/ NUMBER
Thirty is the number 30.
American English: thirty
Arabic: ثَلَاثُون
Brazilian Portuguese: trinta
Chinese: 三十
Croatian: trideset
Czech: třicet
Danish: tredive
Dutch: dertig
European Spanish: treinta
Finnish: kolmekymmentä
French: trente
German: dreißig
Greek: τριάντα
Italian: trenta
Japanese: 三十
Korean: 30
Norwegian: tretti
Polish: trzydzieści
European Portuguese: trinta
Romanian: treizeci
Russian: тридцать
Latin American Spanish: treinta
Swedish: trettio
Thai: สามสิบ
Turkish: otuz
Ukrainian: тридцять
Vietnamese: ba mươi
All related terms of 'thirty'
top thirty
the thirty most important or successful items in a particular list
thirty-three
→ a former name for LP 1
thirty-twomo
a book size resulting from folding a sheet of paper into 32 leaves or 64 pages
the top thirty
the thirty best-selling pop music recordings at any particular time
thirty-second note
a note having the time value of one thirty-second of a semibreve
Thirty-Share Index
an index of share prices produced by the Financial Times , designed to reflect general price trends : based on the average price of thirty British shares
Thirty Years' War
a major conflict involving principally Austria , Denmark , France, Holland , the German states , Spain , and Sweden , that devastated central Europe, esp large areas of Germany (1618–48). It began as a war between Protestants and Catholics but was gradually transformed into a struggle to determine whether the German emperor could assert more than nominal authority over his princely vassals . The Peace of Westphalia gave the German states their sovereignty and the right of religious toleration and confirmed French ascendancy
Thirty-nine Articles
a set of formulas defining the doctrinal position of the Church of England, drawn up in the 16th century, to which the clergy are required to give general consent
32°
a book size resulting from folding a sheet of paper into 32 leaves or 64 pages
32mo
a book size resulting from folding a sheet of paper into 32 leaves or 64 pages
demisemiquaver
a note having the time value of one thirty-second of a semibreve